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12210200222020 = 225738363150837
BaseRepresentation
bin1011000110101110100010…
…1001011001100101000100
31121020021122211212202101121
42301223220221121211010
53100022442224101040
641545142154203324
72400105100302103
oct261535051314504
947207584782347
1012210200222020
113988353784859
121452503423544
136a7556030598
14302d9666203a
15162936b02c4a
hexb1ae8a59944

12210200222020 has 24 divisors (see below), whose sum is σ = 25992672804504. Its totient is φ = 4817174881536.

The previous prime is 12210200221913. The next prime is 12210200222023. The reversal of 12210200222020 is 2022200201221.

It can be written as a sum of positive squares in 4 ways, for example, as 1035981980224 + 11174218241796 = 1017832^2 + 3342786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12210200221985 and 12210200222003.

It is not an unprimeable number, because it can be changed into a prime (12210200222023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4181573959 + ... + 4181576878.

It is an arithmetic number, because the mean of its divisors is an integer number (1083028033521).

Almost surely, 212210200222020 is an apocalyptic number.

12210200222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210200222020 is an abundant number, since it is smaller than the sum of its proper divisors (13782472582484).

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

12210200222020 is a wasteful number, since it uses less digits than its factorization.

12210200222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8363150919 (or 8363150917 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12210200222020 its reverse (2022200201221), we get a palindrome (14232400423241).

The spelling of 12210200222020 in words is "twelve trillion, two hundred ten billion, two hundred million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 8363150837 16726301674 33452603348 41815754185 83631508370 167263016740 610510011101 1221020022202 2442040044404 3052550055505 6105100111010 12210200222020