22302002121 has 16 divisors (see below), whose sum is σ = 34243427328. Its totient is φ = 12646717200.

The previous prime is 22302002089. The next prime is 22302002147. The reversal of 22302002121 is 12120020322.

It is a happy number.

It is not a de Polignac number, because 22302002121 - 2⁵ = 22302002089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22302002121.

It is not an unprimeable number, because it can be changed into a prime (22302002161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4050685 + ... + 4056186.

It is an arithmetic number, because the mean of its divisors is an integer number (2140214208).

Almost surely, 2^22302002121 is an apocalyptic number.

22302002121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22302002121 is a deficient number, since it is larger than the sum of its proper divisors (11941425207).

22302002121 is a wasteful number, since it uses less digits than its factorization.

22302002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8107012.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22302002121 its reverse (12120020322), we get a palindrome (34422022443).

The spelling of 22302002121 in words is "twenty-two billion, three hundred two million, two thousand, one hundred twenty-one".