21022122022000 has 160 divisors (see below), whose sum is σ = 56001576616128. Its totient is φ = 7568720000000.

The previous prime is 21022122021947. The next prime is 21022122022007. The reversal of 21022122022000 is 22022122012.

It is a super-2 number, since 2×21022122022000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022122022007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2508451 + ... + 6952450.

Almost surely, 2^{21022122022000} is an apocalyptic number.

21022122022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022122022000 is an abundant number, since it is smaller than the sum of its proper divisors (34979454594128).

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

21022122022000 is a wasteful number, since it uses less digits than its factorization.

21022122022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461036 (or 9461020 counting only the distinct ones).

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

Adding to 21022122022000 its reverse (22022122012), we get a palindrome (21044144144012).

The spelling of 21022122022000 in words is "twenty-one trillion, twenty-two billion, one hundred twenty-two million, twenty-two thousand".