21002201012102 has 8 divisors (see below), whose sum is σ = 31503897664200. Its totient is φ = 10500901790704.

The previous prime is 21002201012063. The next prime is 21002201012119. The reversal of 21002201012102 is 20121010220012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99225527 + ... + 99436962.

It is an arithmetic number, because the mean of its divisors is an integer number (3937987208025).

Almost surely, 2^{21002201012102} is an apocalyptic number.

21002201012102 is a deficient number, since it is larger than the sum of its proper divisors (10501696652098).

21002201012102 is a wasteful number, since it uses less digits than its factorization.

21002201012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198715350.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21002201012102 its reverse (20121010220012), we get a palindrome (41123211232114).

The spelling of 21002201012102 in words is "twenty-one trillion, two billion, two hundred one million, twelve thousand, one hundred two".