202021200011100 has 72 divisors (see below), whose sum is σ = 590301946101168. Its totient is φ = 53338930688000.

The previous prime is 202021200011093. The next prime is 202021200011107. The reversal of 202021200011100 is 1110002120202.

It is an interprime number because it is at equal distance from previous prime (202021200011093) and next prime (202021200011107).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021200011107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3333652869 + ... + 3333713468.

It is an arithmetic number, because the mean of its divisors is an integer number (8198638140294).

Almost surely, 2^{202021200011100} is an apocalyptic number.

202021200011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202021200011100 is an abundant number, since it is smaller than the sum of its proper divisors (388280746090068).

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

202021200011100 is a wasteful number, since it uses less digits than its factorization.

202021200011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667366455 (or 6667366448 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202021200011100 its reverse (1110002120202), we get a palindrome (203131202131302).

The spelling of 202021200011100 in words is "two hundred two trillion, twenty-one billion, two hundred million, eleven thousand, one hundred".