202102110021019 has 8 divisors (see below), whose sum is σ = 229103606501840. Its totient is φ = 176737067872416.

The previous prime is 202102110020971. The next prime is 202102110021029. The reversal of 202102110021019 is 910120011201202.

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 202102110021019 - 2²³ = 202102101632411 is a prime.

It is a super-2 number, since 2×202102110021019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102110021029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 409113582792 + ... + 409113583285.

It is an arithmetic number, because the mean of its divisors is an integer number (28637950812730).

Almost surely, 2^{202102110021019} is an apocalyptic number.

202102110021019 is a deficient number, since it is larger than the sum of its proper divisors (27001496480821).

202102110021019 is a wasteful number, since it uses less digits than its factorization.

202102110021019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818227166109.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 202102110021019 in words is "two hundred two trillion, one hundred two billion, one hundred ten million, twenty-one thousand, nineteen".