22000422022221 has 16 divisors (see below), whose sum is σ = 30183767285760. Its totient is φ = 14245823469360.

The previous prime is 22000422022211. The next prime is 22000422022231. The reversal of 22000422022221 is 12222022400022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22000422022211) and next prime (22000422022231).

It is not a de Polignac number, because 22000422022221 - 2⁷ = 22000422022093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000422022211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476362125 + ... + 476408306.

It is an arithmetic number, because the mean of its divisors is an integer number (1886485455360).

Almost surely, 2^{22000422022221} is an apocalyptic number.

It is an amenable number.

22000422022221 is a deficient number, since it is larger than the sum of its proper divisors (8183345263539).

22000422022221 is a wasteful number, since it uses less digits than its factorization.

22000422022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952770656.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22000422022221 its reverse (12222022400022), we get a palindrome (34222444422243).

The spelling of 22000422022221 in words is "twenty-two trillion, four hundred twenty-two million, twenty-two thousand, two hundred twenty-one".