202101020220100 has 72 divisors (see below), whose sum is σ = 449594342120448. Its totient is φ = 78809254867200.

The previous prime is 202101020220097. The next prime is 202101020220131. The reversal of 202101020220100 is 1022020101202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13132372 + ... + 24013771.

It is an arithmetic number, because the mean of its divisors is an integer number (6244365862784).

Almost surely, 2^{202101020220100} is an apocalyptic number.

202101020220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101020220100 is an abundant number, since it is smaller than the sum of its proper divisors (247493321900348).

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

202101020220100 is a wasteful number, since it uses less digits than its factorization.

202101020220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37147525 (or 37147518 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202101020220100 its reverse (1022020101202), we get a palindrome (203123040321302).

The spelling of 202101020220100 in words is "two hundred two trillion, one hundred one billion, twenty million, two hundred twenty thousand, one hundred".