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12202212222020 = 225610110611101
BaseRepresentation
bin1011000110010000110010…
…0001100110010001000100
31121012112001011001022101202
42301210030201212101010
53044410112312101040
641541341403442032
72366403123361262
oct261441441462104
947175034038352
1012202212222020
113984a24763167
121450a54226318
136a688212c472
143028397dd432
1516261a6c8015
hexb190c866444

12202212222020 has 12 divisors (see below), whose sum is σ = 25624645666284. Its totient is φ = 4880884888800.

The previous prime is 12202212221951. The next prime is 12202212222037. The reversal of 12202212222020 is 2022221220221.

It can be written as a sum of positive squares in 2 ways, for example, as 6579091620676 + 5623120601344 = 2564974^2 + 2371312^2 .

It is a super-2 number, since 2×122022122220202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 610110611101 = 12202212222020 / (1 + 2 + 2 + 0 + 2 + 2 + 1 + 2 + 2 + 2 + 2 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 12202212221983 and 12202212222001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305055305531 + ... + 305055305570.

It is an arithmetic number, because the mean of its divisors is an integer number (2135387138857).

Almost surely, 212202212222020 is an apocalyptic number.

12202212222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202212222020 is an abundant number, since it is smaller than the sum of its proper divisors (13422433444264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12202212222020 is a wasteful number, since it uses less digits than its factorization.

12202212222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610110611110 (or 610110611108 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12202212222020 its reverse (2022221220221), we get a palindrome (14224433442241).

The spelling of 12202212222020 in words is "twelve trillion, two hundred two billion, two hundred twelve million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 610110611101 1220221222202 2440442444404 3050553055505 6101106111010 12202212222020