202120120019 has 8 divisors (see below), whose sum is σ = 209221911360. Its totient is φ = 195027137536.

The previous prime is 202120119983. The next prime is 202120120109. The reversal of 202120120019 is 910021021202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202120120019 - 2⁸ = 202120119763 is a prime.

It is a super-2 number, since 2×202120120019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120120619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155502 + ... + 2247315.

It is an arithmetic number, because the mean of its divisors is an integer number (26152738920).

Almost surely, 2^202120120019 is an apocalyptic number.

202120120019 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

202120120019 is a deficient number, since it is larger than the sum of its proper divisors (7101791341).

202120120019 is a wasteful number, since it uses less digits than its factorization.

202120120019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404429.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 202120120019 in words is "two hundred two billion, one hundred twenty million, one hundred twenty thousand, nineteen".