22000122021000 has 128 divisors (see below), whose sum is σ = 72253032508800. Its totient is φ = 5557925548800.

The previous prime is 22000122020977. The next prime is 22000122021043. The reversal of 22000122021000 is 12022100022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192926527 + ... + 193040526.

It is an arithmetic number, because the mean of its divisors is an integer number (564476816475).

Almost surely, 2^{22000122021000} is an apocalyptic number.

22000122021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000122021000 is an abundant number, since it is smaller than the sum of its proper divisors (50252910487800).

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

22000122021000 is a wasteful number, since it uses less digits than its factorization.

22000122021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385967096 (or 385967082 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22000122021000 its reverse (12022100022), we get a palindrome (22012144121022).

The spelling of 22000122021000 in words is "twenty-two trillion, one hundred twenty-two million, twenty-one thousand".