22112120310 has 128 divisors (see below), whose sum is σ = 61910645760. Its totient is φ = 4950257664.

The previous prime is 22112120309. The next prime is 22112120323. The reversal of 22112120310 is 1302121122.

It is a super-2 number, since 2×22112120310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22112120310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1994302 + ... + 2005358.

It is an arithmetic number, because the mean of its divisors is an integer number (483676920).

Almost surely, 2^22112120310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112120310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30955322880).

22112120310 is an abundant number, since it is smaller than the sum of its proper divisors (39798525450).

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

22112120310 is a wasteful number, since it uses less digits than its factorization.

22112120310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22112120310 its reverse (1302121122), we get a palindrome (23414241432).

The spelling of 22112120310 in words is "twenty-two billion, one hundred twelve million, one hundred twenty thousand, three hundred ten".