21100010212002 has 16 divisors (see below), whose sum is σ = 42319567228320. Its totient is φ = 7013412269952.

The previous prime is 21100010211991. The next prime is 21100010212069. The reversal of 21100010212002 is 20021201000112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4981114552 + ... + 4981118787.

It is an arithmetic number, because the mean of its divisors is an integer number (2644972951770).

Almost surely, 2^{21100010212002} is an apocalyptic number.

21100010212002 is an abundant number, since it is smaller than the sum of its proper divisors (21219557016318).

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

21100010212002 is a wasteful number, since it uses less digits than its factorization.

21100010212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9962233697.

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

Adding to 21100010212002 its reverse (20021201000112), we get a palindrome (41121211212114).

The spelling of 21100010212002 in words is "twenty-one trillion, one hundred billion, ten million, two hundred twelve thousand, two".