202101213223100 has 36 divisors (see below), whose sum is σ = 441250182623544. Its totient is φ = 80344531385280.

The previous prime is 202101213223097. The next prime is 202101213223127. The reversal of 202101213223100 is 1322312101202.

It is a super-2 number, since 2×202101213223100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6199407419 + ... + 6199440018.

Almost surely, 2^{202101213223100} is an apocalyptic number.

202101213223100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101213223100 is an abundant number, since it is smaller than the sum of its proper divisors (239148969400444).

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

202101213223100 is a wasteful number, since it uses less digits than its factorization.

202101213223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12398847614 (or 12398847607 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202101213223100 its reverse (1322312101202), we get a palindrome (203423525324302).

The spelling of 202101213223100 in words is "two hundred two trillion, one hundred one billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred".