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10222222020 = 2235170370367
BaseRepresentation
bin10011000010100101…
…01011101011000100
3222101101220200102120
421201102223223010
5131413342101040
64410201405540
7511213311363
oct114122535304
928341820376
1010222222020
1143761a577a
121b934998b0
13c6ba553aa
146cd88b7da
153ec6567d0
hex2614abac4

10222222020 has 24 divisors (see below), whose sum is σ = 28622221824. Its totient is φ = 2725925856.

The previous prime is 10222222001. The next prime is 10222222061. The reversal of 10222222020 is 2022222201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85185124 + ... + 85185243.

It is an arithmetic number, because the mean of its divisors is an integer number (1192592576).

Almost surely, 210222222020 is an apocalyptic number.

10222222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222222020 is an abundant number, since it is smaller than the sum of its proper divisors (18399999804).

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

10222222020 is a wasteful number, since it uses less digits than its factorization.

10222222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170370379 (or 170370377 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 10222222020 its reverse (2022222201), we get a palindrome (12244444221).

The spelling of 10222222020 in words is "ten billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 170370367 340740734 511111101 681481468 851851835 1022222202 1703703670 2044444404 2555555505 3407407340 5111111010 10222222020