2202100121 has 4 divisors (see below), whose sum is σ = 2371492452. Its totient is φ = 2032707792.

The previous prime is 2202100099. The next prime is 2202100169. The reversal of 2202100121 is 1210012022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1057225225 + 1144874896 = 32515^2 + 33836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2202100121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2202100921) 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, 84696146 + ... + 84696171.

It is an arithmetic number, because the mean of its divisors is an integer number (592873113).

Almost surely, 2^2202100121 is an apocalyptic number.

It is an amenable number.

2202100121 is a deficient number, since it is larger than the sum of its proper divisors (169392331).

2202100121 is a wasteful number, since it uses less digits than its factorization.

2202100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169392330.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2202100121 is about 46926.5396231173. The cubic root of 2202100121 is about 1301.0051636300.

Adding to 2202100121 its reverse (1210012022), we get a palindrome (3412112143).

The spelling of 2202100121 in words is "two billion, two hundred two million, one hundred thousand, one hundred twenty-one".