22202100221020 has 48 divisors (see below), whose sum is σ = 50004333015840. Its totient is φ = 8254683530496.

The previous prime is 22202100220891. The next prime is 22202100221027. The reversal of 22202100221020 is 2012200120222.

It is a junction number, because it is equal to n+sod(n) for n = 22202100220985 and 22202100221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202100221027) 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, 551174007 + ... + 551214286.

It is an arithmetic number, because the mean of its divisors is an integer number (1041756937830).

Almost surely, 2^{22202100221020} is an apocalyptic number.

22202100221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202100221020 is an abundant number, since it is smaller than the sum of its proper divisors (27802232794820).

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

22202100221020 is a wasteful number, since it uses less digits than its factorization.

22202100221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102388374 (or 1102388372 counting only the distinct ones).

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

Adding to 22202100221020 its reverse (2012200120222), we get a palindrome (24214300341242).

The spelling of 22202100221020 in words is "twenty-two trillion, two hundred two billion, one hundred million, two hundred twenty-one thousand, twenty".