22002121102121 has 4 divisors (see below), whose sum is σ = 22008872293200. Its totient is φ = 21995369911044.

The previous prime is 22002121102021. The next prime is 22002121102153. The reversal of 22002121102121 is 12120112120022.

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 22002121102121 - 2¹⁰ = 22002121101097 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 22002121102121.

It is not an unprimeable number, because it can be changed into a prime (22002121102021) 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, 3375590651 + ... + 3375597168.

It is an arithmetic number, because the mean of its divisors is an integer number (5502218073300).

Almost surely, 2^{22002121102121} is an apocalyptic number.

It is an amenable number.

22002121102121 is a deficient number, since it is larger than the sum of its proper divisors (6751191079).

22002121102121 is an equidigital number, since it uses as much as digits as its factorization.

22002121102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751191078.

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

Adding to 22002121102121 its reverse (12120112120022), we get a palindrome (34122233222143).

The spelling of 22002121102121 in words is "twenty-two trillion, two billion, one hundred twenty-one million, one hundred two thousand, one hundred twenty-one".