22011021021020 has 24 divisors (see below), whose sum is σ = 48655941205200. Its totient is φ = 8341018492032.

The previous prime is 22011021020993. The next prime is 22011021021023. The reversal of 22011021021020 is 2012012011022.

It is a junction number, because it is equal to n+sod(n) for n = 22011021020986 and 22011021021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011021021023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28961869385 + ... + 28961870144.

It is an arithmetic number, because the mean of its divisors is an integer number (2027330883550).

Almost surely, 2^{22011021021020} is an apocalyptic number.

22011021021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011021021020 is an abundant number, since it is smaller than the sum of its proper divisors (26644920184180).

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

22011021021020 is a wasteful number, since it uses less digits than its factorization.

22011021021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57923739557 (or 57923739555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22011021021020 its reverse (2012012011022), we get a palindrome (24023033032042).

The spelling of 22011021021020 in words is "twenty-two trillion, eleven billion, twenty-one million, twenty-one thousand, twenty".