21110102011102 has 16 divisors (see below), whose sum is σ = 34157113506432. Its totient is φ = 9727072722720.

The previous prime is 21110102011091. The next prime is 21110102011139. The reversal of 21110102011102 is 20111020101112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

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, 668787349 + ... + 668818912.

It is an arithmetic number, because the mean of its divisors is an integer number (2134819594152).

Almost surely, 2^{21110102011102} is an apocalyptic number.

21110102011102 is a deficient number, since it is larger than the sum of its proper divisors (13047011495330).

21110102011102 is a wasteful number, since it uses less digits than its factorization.

21110102011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337606883.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21110102011102 its reverse (20111020101112), we get a palindrome (41221122112214).

The spelling of 21110102011102 in words is "twenty-one trillion, one hundred ten billion, one hundred two million, eleven thousand, one hundred two".