202119193020 has 48 divisors (see below), whose sum is σ = 566108047008. Its totient is φ = 53881850880.

The previous prime is 202119192983. The next prime is 202119193021. The reversal of 202119193020 is 20391911202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202119193021) 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, 321721 + ... + 712560.

It is an arithmetic number, because the mean of its divisors is an integer number (11793917646).

Almost surely, 2^202119193020 is an apocalyptic number.

202119193020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202119193020 is an abundant number, since it is smaller than the sum of its proper divisors (363988853988).

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

202119193020 is a wasteful number, since it uses less digits than its factorization.

202119193020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037550 (or 1037548 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 202119193020 in words is "two hundred two billion, one hundred nineteen million, one hundred ninety-three thousand, twenty".