2200122121 has 4 divisors (see below), whose sum is σ = 2200621312. Its totient is φ = 2199622932.

The previous prime is 2200122103. The next prime is 2200122131. The reversal of 2200122121 is 1212210022.

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 a de Polignac number, because none of the positive numbers 2^k-2200122121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2200122131) 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, 242925 + ... + 251818.

It is an arithmetic number, because the mean of its divisors is an integer number (550155328).

Almost surely, 2^2200122121 is an apocalyptic number.

It is an amenable number.

2200122121 is a deficient number, since it is larger than the sum of its proper divisors (499191).

2200122121 is an equidigital number, since it uses as much as digits as its factorization.

2200122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499190.

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

The square root of 2200122121 is about 46905.4593944031. The cubic root of 2200122121 is about 1300.6155114861.

Adding to 2200122121 its reverse (1212210022), we get a palindrome (3412332143).

The spelling of 2200122121 in words is "two billion, two hundred million, one hundred twenty-two thousand, one hundred twenty-one".