2202102121 has 4 divisors (see below), whose sum is σ = 2203996752. Its totient is φ = 2200207492.

The previous prime is 2202102061. The next prime is 2202102131. The reversal of 2202102121 is 1212012022.

It is a happy number.

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 2202102121 - 2⁹ = 2202101609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2202102131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945571 + ... + 947896.

It is an arithmetic number, because the mean of its divisors is an integer number (550999188).

Almost surely, 2^2202102121 is an apocalyptic number.

It is an amenable number.

2202102121 is a deficient number, since it is larger than the sum of its proper divisors (1894631).

2202102121 is a wasteful number, since it uses less digits than its factorization.

2202102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894630.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2202102121 is about 46926.5609330153. The cubic root of 2202102121 is about 1301.0055574979.

Adding to 2202102121 its reverse (1212012022), we get a palindrome (3414114143).

Subtracting from 2202102121 its reverse (1212012022), we obtain a palindrome (990090099).

The spelling of 2202102121 in words is "two billion, two hundred two million, one hundred two thousand, one hundred twenty-one".