21120001113310 has 64 divisors (see below), whose sum is σ = 43276565952000. Its totient is φ = 7345844049280.

The previous prime is 21120001113301. The next prime is 21120001113361. The reversal of 21120001113310 is 1331110002112.

It is a happy number.

It is a super-2 number, since 2×21120001113310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87161484 + ... + 87403456.

It is an arithmetic number, because the mean of its divisors is an integer number (676196343000).

Almost surely, 2^{21120001113310} is an apocalyptic number.

21120001113310 is an abundant number, since it is smaller than the sum of its proper divisors (22156564838690).

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

21120001113310 is a wasteful number, since it uses less digits than its factorization.

21120001113310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276513.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 21120001113310 its reverse (1331110002112), we get a palindrome (22451111115422).

The spelling of 21120001113310 in words is "twenty-one trillion, one hundred twenty billion, one million, one hundred thirteen thousand, three hundred ten".