202021222001020 has 12 divisors (see below), whose sum is σ = 424244566202184. Its totient is φ = 80808488800400.

The previous prime is 202021222001003. The next prime is 202021222001033. The reversal of 202021222001020 is 20100222120202.

It is a junction number, because it is equal to n+sod(n) for n = 202021222000985 and 202021222001003.

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 3 ways as a sum of consecutive naturals, for example, 5050530550006 + ... + 5050530550045.

It is an arithmetic number, because the mean of its divisors is an integer number (35353713850182).

Almost surely, 2^{202021222001020} is an apocalyptic number.

202021222001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202021222001020 is an abundant number, since it is smaller than the sum of its proper divisors (222223344201164).

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

202021222001020 is a wasteful number, since it uses less digits than its factorization.

202021222001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101061100060 (or 10101061100058 counting only the distinct ones).

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

Adding to 202021222001020 its reverse (20100222120202), we get a palindrome (222121444121222).

The spelling of 202021222001020 in words is "two hundred two trillion, twenty-one billion, two hundred twenty-two million, one thousand, twenty".