202221000120020 has 48 divisors (see below), whose sum is σ = 485332546608000. Its totient is φ = 69332607709824.

The previous prime is 202221000119987. The next prime is 202221000120071. The reversal of 202221000120020 is 20021000122202.

It is a super-2 number, since 2×202221000120020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 202221000119977 and 202221000120004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29788307 + ... + 35941413.

It is an arithmetic number, because the mean of its divisors is an integer number (10111094721000).

Almost surely, 2^{202221000120020} is an apocalyptic number.

202221000120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221000120020 is an abundant number, since it is smaller than the sum of its proper divisors (283111546487980).

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

202221000120020 is a wasteful number, since it uses less digits than its factorization.

202221000120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387872 (or 6387870 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202221000120020 its reverse (20021000122202), we get a palindrome (222242000242222).

The spelling of 202221000120020 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty thousand, twenty".