202120220101100 has 36 divisors (see below), whose sum is σ = 501258145852464. Its totient is φ = 69298361177280.

The previous prime is 202120220101061. The next prime is 202120220101117. The reversal of 202120220101100 is 1101022021202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144371585087 + ... + 144371586486.

Almost surely, 2^{202120220101100} is an apocalyptic number.

202120220101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202120220101100 is an abundant number, since it is smaller than the sum of its proper divisors (299137925751364).

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

202120220101100 is a wasteful number, since it uses less digits than its factorization.

202120220101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288743171594 (or 288743171587 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202120220101100 its reverse (1101022021202), we get a palindrome (203221242122302).

The spelling of 202120220101100 in words is "two hundred two trillion, one hundred twenty billion, two hundred twenty million, one hundred one thousand, one hundred".