22002210222221 has 4 divisors (see below), whose sum is σ = 22002289131072. Its totient is φ = 22002131313372.

The previous prime is 22002210222217. The next prime is 22002210222229. The reversal of 22002210222221 is 12222201220022.

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 22002210222221 - 2² = 22002210222217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002210222193 and 22002210222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002210222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39034691 + ... + 39594336.

It is an arithmetic number, because the mean of its divisors is an integer number (5500572282768).

Almost surely, 2^{22002210222221} is an apocalyptic number.

It is an amenable number.

22002210222221 is a deficient number, since it is larger than the sum of its proper divisors (78908851).

22002210222221 is an equidigital number, since it uses as much as digits as its factorization.

22002210222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78908850.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22002210222221 its reverse (12222201220022), we get a palindrome (34224411442243).

The spelling of 22002210222221 in words is "twenty-two trillion, two billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty-one".