21112022012102 has 16 divisors (see below), whose sum is σ = 37440039036960. Its totient is φ = 8736009108288.

The previous prime is 21112022012101. The next prime is 21112022012239. The reversal of 21112022012102 is 20121022021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112022012101) by changing a digit.

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, 26000026703 + ... + 26000027514.

It is an arithmetic number, because the mean of its divisors is an integer number (2340002439810).

Almost surely, 2^{21112022012102} is an apocalyptic number.

21112022012102 is a deficient number, since it is larger than the sum of its proper divisors (16328017024858).

21112022012102 is a wasteful number, since it uses less digits than its factorization.

21112022012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52000054255.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21112022012102 its reverse (20121022021112), we get a palindrome (41233044033214).

The spelling of 21112022012102 in words is "twenty-one trillion, one hundred twelve billion, twenty-two million, twelve thousand, one hundred two".