22112001210 has 128 divisors (see below), whose sum is σ = 58345007616. Its totient is φ = 5329658880.

The previous prime is 22112001209. The next prime is 22112001259. The reversal of 22112001210 is 1210021122.

It is a super-2 number, since 2×22112001210² (a number of 21 digits) contains 22 as substring.

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, 16969419 + ... + 16970721.

It is an arithmetic number, because the mean of its divisors is an integer number (455820372).

Almost surely, 2^22112001210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112001210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29172503808).

22112001210 is an abundant number, since it is smaller than the sum of its proper divisors (36233006406).

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

22112001210 is a wasteful number, since it uses less digits than its factorization.

22112001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22112001210 its reverse (1210021122), we get a palindrome (23322022332).

The spelling of 22112001210 in words is "twenty-two billion, one hundred twelve million, one thousand, two hundred ten".