12081298020 has 48 divisors (see below), whose sum is σ = 36902875968. Its totient is φ = 2928799360.

The previous prime is 12081298003. The next prime is 12081298049. The reversal of 12081298020 is 2089218021.

It is a super-3 number, since 3×12081298020³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9151839 + ... + 9153158.

It is an arithmetic number, because the mean of its divisors is an integer number (768809916).

Almost surely, 2^12081298020 is an apocalyptic number.

12081298020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12081298020 is an abundant number, since it is smaller than the sum of its proper divisors (24821577948).

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

12081298020 is a wasteful number, since it uses less digits than its factorization.

12081298020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18305020 (or 18305018 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The spelling of 12081298020 in words is "twelve billion, eighty-one million, two hundred ninety-eight thousand, twenty".