100202212100121 has 4 divisors (see below), whose sum is σ = 133602949466832. Its totient is φ = 66801474733412.

The previous prime is 100202212100101. The next prime is 100202212100173. The reversal of 100202212100121 is 121001212202001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100202212100121 - 2³³ = 100193622165529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100202212100121.

It is not an unprimeable number, because it can be changed into a prime (100202212100101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16700368683351 + ... + 16700368683356.

It is an arithmetic number, because the mean of its divisors is an integer number (33400737366708).

Almost surely, 2^{100202212100121} is an apocalyptic number.

It is an amenable number.

100202212100121 is a deficient number, since it is larger than the sum of its proper divisors (33400737366711).

100202212100121 is an equidigital number, since it uses as much as digits as its factorization.

100202212100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33400737366710.

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

Adding to 100202212100121 its reverse (121001212202001), we get a palindrome (221203424302122).

The spelling of 100202212100121 in words is "one hundred trillion, two hundred two billion, two hundred twelve million, one hundred thousand, one hundred twenty-one".