100201202012121 has 64 divisors (see below), whose sum is σ = 162722350891008. Its totient is φ = 53600999842368.

The previous prime is 100201202012111. The next prime is 100201202012129. The reversal of 100201202012121 is 121210202102001.

It is not a de Polignac number, because 100201202012121 - 2⁷ = 100201202011993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100201202012121.

It is not an unprimeable number, because it can be changed into a prime (100201202012129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 720165066 + ... + 720304188.

It is an arithmetic number, because the mean of its divisors is an integer number (2542536732672).

Almost surely, 2^{100201202012121} is an apocalyptic number.

It is an amenable number.

100201202012121 is a deficient number, since it is larger than the sum of its proper divisors (62521148878887).

100201202012121 is a wasteful number, since it uses less digits than its factorization.

100201202012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170930.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100201202012121 its reverse (121210202102001), we get a palindrome (221411404114122).

The spelling of 100201202012121 in words is "one hundred trillion, two hundred one billion, two hundred two million, twelve thousand, one hundred twenty-one".