22011222111020 has 24 divisors (see below), whose sum is σ = 46230698871168. Its totient is φ = 8803130284800.

The previous prime is 22011222110981. The next prime is 22011222111077. The reversal of 22011222111020 is 2011122211022.

It is a self number, because there is not a number n which added to its sum of digits gives 22011222111020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84777116 + ... + 85036355.

It is an arithmetic number, because the mean of its divisors is an integer number (1926279119632).

Almost surely, 2^{22011222111020} is an apocalyptic number.

22011222111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011222111020 is an abundant number, since it is smaller than the sum of its proper divisors (24219476760148).

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

22011222111020 is a wasteful number, since it uses less digits than its factorization.

22011222111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169819961 (or 169819959 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22011222111020 its reverse (2011122211022), we get a palindrome (24022344322042).

The spelling of 22011222111020 in words is "twenty-two trillion, eleven billion, two hundred twenty-two million, one hundred eleven thousand, twenty".