100021011402 has 64 divisors (see below), whose sum is σ = 240107656320. Its totient is φ = 27440861184.

The previous prime is 100021011379. The next prime is 100021011403. The reversal of 100021011402 is 204110120001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100021011403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1959823 + ... + 2010210.

It is an arithmetic number, because the mean of its divisors is an integer number (3751682130).

Almost surely, 2^100021011402 is an apocalyptic number.

100021011402 is an abundant number, since it is smaller than the sum of its proper divisors (140086644918).

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

100021011402 is a wasteful number, since it uses less digits than its factorization.

100021011402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970087.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100021011402 its reverse (204110120001), we get a palindrome (304131131403).

The spelling of 100021011402 in words is "one hundred billion, twenty-one million, eleven thousand, four hundred two".