9420121776012 has 48 divisors (see below), whose sum is σ = 23137375175040. Its totient is φ = 2974745215872.

The previous prime is 9420121775989. The next prime is 9420121776017. The reversal of 9420121776012 is 2106771210249.

It is not an unprimeable number, because it can be changed into a prime (9420121776017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36510363 + ... + 36767469.

It is an arithmetic number, because the mean of its divisors is an integer number (482028649480).

Almost surely, 2^{9420121776012} is an apocalyptic number.

It is an amenable number.

9420121776012 is an abundant number, since it is smaller than the sum of its proper divisors (13717253399028).

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

9420121776012 is a wasteful number, since it uses less digits than its factorization.

9420121776012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417830 (or 417828 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 9420121776012 in words is "nine trillion, four hundred twenty billion, one hundred twenty-one million, seven hundred seventy-six thousand, twelve".