202021100122000 has 80 divisors (see below), whose sum is σ = 489421032227712. Its totient is φ = 80653930185600.

The previous prime is 202021100121989. The next prime is 202021100122027. The reversal of 202021100122000 is 221001120202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 95522404 + ... + 97614403.

Almost surely, 2^{202021100122000} is an apocalyptic number.

202021100122000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202021100122000 is an abundant number, since it is smaller than the sum of its proper divisors (287399932105712).

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

202021100122000 is a wasteful number, since it uses less digits than its factorization.

202021100122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193137353 (or 193137337 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202021100122000 its reverse (221001120202), we get a palindrome (202242101242202).

The spelling of 202021100122000 in words is "two hundred two trillion, twenty-one billion, one hundred million, one hundred twenty-two thousand".