100202212210121 has 24 divisors (see below), whose sum is σ = 117419423139936. Its totient is φ = 85255719151680.

The previous prime is 100202212210033. The next prime is 100202212210153. The reversal of 100202212210121 is 121012212202001.

It is not a de Polignac number, because 100202212210121 - 2²² = 100202208015817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100202212210121.

It is not an unprimeable number, because it can be changed into a prime (100202212210171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116990390 + ... + 117843776.

It is an arithmetic number, because the mean of its divisors is an integer number (4892475964164).

Almost surely, 2^{100202212210121} is an apocalyptic number.

It is an amenable number.

100202212210121 is a deficient number, since it is larger than the sum of its proper divisors (17217210929815).

100202212210121 is a wasteful number, since it uses less digits than its factorization.

100202212210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871029 (or 871022 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100202212210121 its reverse (121012212202001), we get a palindrome (221214424412122).

The spelling of 100202212210121 in words is "one hundred trillion, two hundred two billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-one".