21010001102110 has 64 divisors (see below), whose sum is σ = 40000528442880. Its totient is φ = 7923333237120.

The previous prime is 21010001102093. The next prime is 21010001102143. The reversal of 21010001102110 is 1120110001012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43283655 + ... + 43766365.

It is an arithmetic number, because the mean of its divisors is an integer number (625008256920).

Almost surely, 2^{21010001102110} is an apocalyptic number.

21010001102110 is a deficient number, since it is larger than the sum of its proper divisors (18990527340770).

21010001102110 is a wasteful number, since it uses less digits than its factorization.

21010001102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483841.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21010001102110 its reverse (1120110001012), we get a palindrome (22130111103122).

The spelling of 21010001102110 in words is "twenty-one trillion, ten billion, one million, one hundred two thousand, one hundred ten".