21120100011102 has 16 divisors (see below), whose sum is σ = 44076730458240. Its totient is φ = 6733944931032.

The previous prime is 21120100011089. The next prime is 21120100011139. The reversal of 21120100011102 is 20111000102112.

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, 76522101352 + ... + 76522101627.

It is an arithmetic number, because the mean of its divisors is an integer number (2754795653640).

Almost surely, 2^{21120100011102} is an apocalyptic number.

21120100011102 is an abundant number, since it is smaller than the sum of its proper divisors (22956630447138).

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

21120100011102 is a wasteful number, since it uses less digits than its factorization.

21120100011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153044203007.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21120100011102 its reverse (20111000102112), we get a palindrome (41231100113214).

The spelling of 21120100011102 in words is "twenty-one trillion, one hundred twenty billion, one hundred million, eleven thousand, one hundred two".