12090724220 has 24 divisors (see below), whose sum is σ = 25402046208. Its totient is φ = 4834094400.

The previous prime is 12090724201. The next prime is 12090724259. The reversal of 12090724220 is 2242709021.

It is a super-2 number, since 2×12090724220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91676 + ... + 180515.

It is an arithmetic number, because the mean of its divisors is an integer number (1058418592).

Almost surely, 2^12090724220 is an apocalyptic number.

12090724220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12090724220 is an abundant number, since it is smaller than the sum of its proper divisors (13311321988).

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

12090724220 is a wasteful number, since it uses less digits than its factorization.

12090724220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274421 (or 274419 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 12090724220 in words is "twelve billion, ninety million, seven hundred twenty-four thousand, two hundred twenty".