22111221021010 has 96 divisors (see below), whose sum is σ = 46480192960320. Its totient is φ = 7546072533120.

The previous prime is 22111221020927. The next prime is 22111221021041. The reversal of 22111221021010 is 1012012211122.

It is a super-2 number, since 2×22111221021010² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2034349 + ... + 6954208.

It is an arithmetic number, because the mean of its divisors is an integer number (484168676670).

Almost surely, 2^{22111221021010} is an apocalyptic number.

22111221021010 is an abundant number, since it is smaller than the sum of its proper divisors (24368971939310).

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

22111221021010 is a wasteful number, since it uses less digits than its factorization.

22111221021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988712 (or 8988701 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22111221021010 its reverse (1012012211122), we get a palindrome (23123233232132).

The spelling of 22111221021010 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty-one million, twenty-one thousand, ten".