22002121110020 has 48 divisors (see below), whose sum is σ = 47798470137600. Its totient is φ = 8497236021120.

The previous prime is 22002121109993. The next prime is 22002121110023. The reversal of 22002121110020 is 2001112120022.

It is a junction number, because it is equal to n+sod(n) for n = 22002121109977 and 22002121110004.

It is not an unprimeable number, because it can be changed into a prime (22002121110023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41192465 + ... + 41723175.

It is an arithmetic number, because the mean of its divisors is an integer number (995801461200).

Almost surely, 2^{22002121110020} is an apocalyptic number.

22002121110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002121110020 is an abundant number, since it is smaller than the sum of its proper divisors (25796349027580).

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

22002121110020 is a wasteful number, since it uses less digits than its factorization.

22002121110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602228 (or 602226 counting only the distinct ones).

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

Adding to 22002121110020 its reverse (2001112120022), we get a palindrome (24003233230042).

The spelling of 22002121110020 in words is "twenty-two trillion, two billion, one hundred twenty-one million, one hundred ten thousand, twenty".