202001121210100 has 18 divisors (see below), whose sum is σ = 438342433026134. Its totient is φ = 80800448484000.

The previous prime is 202001121210089. The next prime is 202001121210131. The reversal of 202001121210100 is 1012121100202.

It can be written as a sum of positive squares in 3 ways, for example, as 13876250807056 + 188124870403044 = 3725084^2 + 13715862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1010005605951 + ... + 1010005606150.

Almost surely, 2^{202001121210100} is an apocalyptic number.

202001121210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202001121210100 is an abundant number, since it is smaller than the sum of its proper divisors (236341311816034).

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

202001121210100 is a wasteful number, since it uses less digits than its factorization.

202001121210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020011212115 (or 2020011212108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202001121210100 its reverse (1012121100202), we get a palindrome (203013242310302).

The spelling of 202001121210100 in words is "two hundred two trillion, one billion, one hundred twenty-one million, two hundred ten thousand, one hundred".