21120210112010 has 16 divisors (see below), whose sum is σ = 39669264210816. Its totient is φ = 8080776042768.

The previous prime is 21120210111983. The next prime is 21120210112037. The reversal of 21120210112010 is 1021101202112.

It is an interprime number because it is at equal distance from previous prime (21120210111983) and next prime (21120210112037).

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 7 ways as a sum of consecutive naturals, for example, 45913500014 + ... + 45913500473.

It is an arithmetic number, because the mean of its divisors is an integer number (2479329013176).

Almost surely, 2^{21120210112010} is an apocalyptic number.

21120210112010 is a deficient number, since it is larger than the sum of its proper divisors (18549054098806).

21120210112010 is a wasteful number, since it uses less digits than its factorization.

21120210112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91827000517.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21120210112010 its reverse (1021101202112), we get a palindrome (22141311314122).

The spelling of 21120210112010 in words is "twenty-one trillion, one hundred twenty billion, two hundred ten million, one hundred twelve thousand, ten".