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12222110020 = 2251931316471
BaseRepresentation
bin10110110000111111…
…01001100101000100
31011112210001112000111
423120133221211010
5200012330010040
65340442122404
7611606135551
oct133037514504
934483045014
1012222110020
11520207617a
1224511b0404
1311ca190783
1483d317a28
154b7ee5dea
hex2d87e9944

12222110020 has 24 divisors (see below), whose sum is σ = 25679803968. Its totient is φ = 4886296800.

The previous prime is 12222110009. The next prime is 12222110039. The reversal of 12222110020 is 2001122221.

It is a happy number.

12222110020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119616 + ... + 196855.

It is an arithmetic number, because the mean of its divisors is an integer number (1069991832).

Almost surely, 212222110020 is an apocalyptic number.

12222110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222110020 is an abundant number, since it is smaller than the sum of its proper divisors (13457693948).

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

12222110020 is a wasteful number, since it uses less digits than its factorization.

12222110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318411 (or 318409 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12222110020 its reverse (2001122221), we get a palindrome (14223232241).

The spelling of 12222110020 in words is "twelve billion, two hundred twenty-two million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 1931 3862 7724 9655 19310 38620 316471 632942 1265884 1582355 3164710 6329420 611105501 1222211002 2444422004 3055527505 6111055010 12222110020