21112001102 has 16 divisors (see below), whose sum is σ = 32768616960. Its totient is φ = 10189320288.

The previous prime is 21112001081. The next prime is 21112001117. The reversal of 21112001102 is 20110021112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184208 + ... + 275964.

It is an arithmetic number, because the mean of its divisors is an integer number (2048038560).

Almost surely, 2^21112001102 is an apocalyptic number.

21112001102 is a deficient number, since it is larger than the sum of its proper divisors (11656615858).

21112001102 is a wasteful number, since it uses less digits than its factorization.

21112001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95755.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21112001102 its reverse (20110021112), we get a palindrome (41222022214).

The spelling of 21112001102 in words is "twenty-one billion, one hundred twelve million, one thousand, one hundred two".