22221011011020 has 48 divisors (see below), whose sum is σ = 62314112458080. Its totient is φ = 5916528495616.

The previous prime is 22221011010953. The next prime is 22221011011051. The reversal of 22221011011020 is 2011011012222.

It is a super-2 number, since 2×22221011011020² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283536765 + ... + 283615124.

It is an arithmetic number, because the mean of its divisors is an integer number (1298210676210).

Almost surely, 2^{22221011011020} is an apocalyptic number.

22221011011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221011011020 is an abundant number, since it is smaller than the sum of its proper divisors (40093101447060).

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

22221011011020 is a wasteful number, since it uses less digits than its factorization.

22221011011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567152554 (or 567152552 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22221011011020 its reverse (2011011012222), we get a palindrome (24232022023242).

The spelling of 22221011011020 in words is "twenty-two trillion, two hundred twenty-one billion, eleven million, eleven thousand, twenty".