202101299988 has 96 divisors (see below), whose sum is σ = 574140478464. Its totient is φ = 54013091328.

The previous prime is 202101299987. The next prime is 202101300053. The reversal of 202101299988 is 889992101202.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 202101299988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101299987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201370 + ... + 666897.

It is an arithmetic number, because the mean of its divisors is an integer number (5980629984).

Almost surely, 2^202101299988 is an apocalyptic number.

202101299988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

202101299988 is an abundant number, since it is smaller than the sum of its proper divisors (372039178476).

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

202101299988 is a wasteful number, since it uses less digits than its factorization.

202101299988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868461 (or 868459 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 51.

The spelling of 202101299988 in words is "two hundred two billion, one hundred one million, two hundred ninety-nine thousand, nine hundred eighty-eight".