22002120022211 has 4 divisors (see below), whose sum is σ = 25145280025392. Its totient is φ = 18858960019032.

The previous prime is 22002120022193. The next prime is 22002120022219. The reversal of 22002120022211 is 11222002120022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-22002120022211 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 22002120022211.

It is not an unprimeable number, because it can be changed into a prime (22002120022219) 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, 1571580001580 + ... + 1571580001593.

It is an arithmetic number, because the mean of its divisors is an integer number (6286320006348).

Almost surely, 2^{22002120022211} is an apocalyptic number.

22002120022211 is a deficient number, since it is larger than the sum of its proper divisors (3143160003181).

22002120022211 is an equidigital number, since it uses as much as digits as its factorization.

22002120022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143160003180.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22002120022211 its reverse (11222002120022), we get a palindrome (33224122142233).

The spelling of 22002120022211 in words is "twenty-two trillion, two billion, one hundred twenty million, twenty-two thousand, two hundred eleven".