100442021502 has 16 divisors (see below), whose sum is σ = 212700751632. Its totient is φ = 31511222400.

The previous prime is 100442021443. The next prime is 100442021509. The reversal of 100442021502 is 205120244001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100442021509) 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, 492362749 + ... + 492362952.

It is an arithmetic number, because the mean of its divisors is an integer number (13293796977).

Almost surely, 2^100442021502 is an apocalyptic number.

100442021502 is an abundant number, since it is smaller than the sum of its proper divisors (112258730130).

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

100442021502 is a wasteful number, since it uses less digits than its factorization.

100442021502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984725723.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 100442021502 its reverse (205120244001), we get a palindrome (305562265503).

The spelling of 100442021502 in words is "one hundred billion, four hundred forty-two million, twenty-one thousand, five hundred two".