21122000222020 has 24 divisors (see below), whose sum is σ = 46284730922304. Its totient is φ = 8081460954336.

The previous prime is 21122000221957. The next prime is 21122000222023. The reversal of 21122000222020 is 2022200022112.

It is a super-2 number, since 2×21122000222020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122000221985 and 21122000222003.

It is not an unprimeable number, because it can be changed into a prime (21122000222023) 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, 22958695434 + ... + 22958696353.

It is an arithmetic number, because the mean of its divisors is an integer number (1928530455096).

Almost surely, 2^{21122000222020} is an apocalyptic number.

21122000222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122000222020 is an abundant number, since it is smaller than the sum of its proper divisors (25162730700284).

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

21122000222020 is a wasteful number, since it uses less digits than its factorization.

21122000222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45917391819 (or 45917391817 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21122000222020 its reverse (2022200022112), we get a palindrome (23144200244132).

The spelling of 21122000222020 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred twenty-two thousand, twenty".