202221122001020 has 24 divisors (see below), whose sum is σ = 424704317536464. Its totient is φ = 80880837117696.

The previous prime is 202221122000993. The next prime is 202221122001047. The reversal of 202221122001020 is 20100221122202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202221122000993) and next prime (202221122001047).

It is a self number, because there is not a number n which added to its sum of digits gives 202221122001020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475512317 + ... + 475937396.

It is an arithmetic number, because the mean of its divisors is an integer number (17696013230686).

Almost surely, 2^{202221122001020} is an apocalyptic number.

202221122001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221122001020 is an abundant number, since it is smaller than the sum of its proper divisors (222483195535444).

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

202221122001020 is a wasteful number, since it uses less digits than its factorization.

202221122001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951460349 (or 951460347 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202221122001020 its reverse (20100221122202), we get a palindrome (222321343123222).

The spelling of 202221122001020 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty-two million, one thousand, twenty".