21110120212002 has 16 divisors (see below), whose sum is σ = 43582183663872. Its totient is φ = 6809716197360.

The previous prime is 21110120211893. The next prime is 21110120212003. The reversal of 21110120212002 is 20021202101112.

It is not an unprimeable number, because it can be changed into a prime (21110120212003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56747634793 + ... + 56747635164.

It is an arithmetic number, because the mean of its divisors is an integer number (2723886478992).

Almost surely, 2^{21110120212002} is an apocalyptic number.

21110120212002 is an abundant number, since it is smaller than the sum of its proper divisors (22472063451870).

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

21110120212002 is a wasteful number, since it uses less digits than its factorization.

21110120212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113495269993.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21110120212002 its reverse (20021202101112), we get a palindrome (41131322313114).

The spelling of 21110120212002 in words is "twenty-one trillion, one hundred ten billion, one hundred twenty million, two hundred twelve thousand, two".