21112211201102 has 32 divisors (see below), whose sum is σ = 36265932093888. Its totient is φ = 9029710077696.

The previous prime is 21112211201057. The next prime is 21112211201117. The reversal of 21112211201102 is 20110211221112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20549348 + ... + 21552264.

It is an arithmetic number, because the mean of its divisors is an integer number (1133310377934).

Almost surely, 2^{21112211201102} is an apocalyptic number.

21112211201102 is a deficient number, since it is larger than the sum of its proper divisors (15153720892786).

21112211201102 is a wasteful number, since it uses less digits than its factorization.

21112211201102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005980.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 21112211201102 its reverse (20110211221112), we get a palindrome (41222422422214).

The spelling of 21112211201102 in words is "twenty-one trillion, one hundred twelve billion, two hundred eleven million, two hundred one thousand, one hundred two".