21200101102210 has 8 divisors (see below), whose sum is σ = 38160181983996. Its totient is φ = 8480040440880.

The previous prime is 21200101102177. The next prime is 21200101102237. The reversal of 21200101102210 is 1220110100212.

It can be written as a sum of positive squares in 2 ways, for example, as 20985258655089 + 214842447121 = 4580967^2 + 463511^2 .

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

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, 1060005055101 + ... + 1060005055120.

Almost surely, 2^{21200101102210} is an apocalyptic number.

21200101102210 is a deficient number, since it is larger than the sum of its proper divisors (16960080881786).

21200101102210 is a wasteful number, since it uses less digits than its factorization.

21200101102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120010110228.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21200101102210 its reverse (1220110100212), we get a palindrome (22420211202422).

The spelling of 21200101102210 in words is "twenty-one trillion, two hundred billion, one hundred one million, one hundred two thousand, two hundred ten".