402120242021204 has 12 divisors (see below), whose sum is σ = 804240484042464. Its totient is φ = 172337246580504.

The previous prime is 402120242021203. The next prime is 402120242021207.

402120242021204 is nontrivially palindromic in base 10.

402120242021204 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402120242021203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7180718607494 + ... + 7180718607549.

It is an arithmetic number, because the mean of its divisors is an integer number (67020040336872).

Almost surely, 2^{402120242021204} is an apocalyptic number.

It is an amenable number.

402120242021204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402120242021204 is a wasteful number, since it uses less digits than its factorization.

402120242021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14361437215054 (or 14361437215052 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The spelling of 402120242021204 in words is "four hundred two trillion, one hundred twenty billion, two hundred forty-two million, twenty-one thousand, two hundred four".