100021112010 has 64 divisors (see below), whose sum is σ = 266750703360. Its totient is φ = 26669522880.

The previous prime is 100021112003. The next prime is 100021112033. The reversal of 100021112010 is 10211120001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100021111983 and 100021112001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4985800 + ... + 5005820.

It is an arithmetic number, because the mean of its divisors is an integer number (4167979740).

Almost surely, 2^100021112010 is an apocalyptic number.

100021112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100021112010 is an abundant number, since it is smaller than the sum of its proper divisors (166729591350).

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

100021112010 is a wasteful number, since it uses less digits than its factorization.

100021112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38540 (or 38534 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100021112010 its reverse (10211120001), we get a palindrome (110232232011).

The spelling of 100021112010 in words is "one hundred billion, twenty-one million, one hundred twelve thousand, ten".