100021019964 has 24 divisors (see below), whose sum is σ = 233572002048. Its totient is φ = 33313251120.

The previous prime is 100021019963. The next prime is 100021020013. The reversal of 100021019964 is 469910120001.

100021019964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×100021019964² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021019963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3370722 + ... + 3400265.

It is an arithmetic number, because the mean of its divisors is an integer number (9732166752).

Almost surely, 2^100021019964 is an apocalyptic number.

It is an amenable number.

100021019964 is an abundant number, since it is smaller than the sum of its proper divisors (133550982084).

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

100021019964 is a wasteful number, since it uses less digits than its factorization.

100021019964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772225 (or 6772223 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

Adding to 100021019964 its reverse (469910120001), we get a palindrome (569931139965).

The spelling of 100021019964 in words is "one hundred billion, twenty-one million, nineteen thousand, nine hundred sixty-four".