22221001022222 has 16 divisors (see below), whose sum is σ = 33788139075072. Its totient is φ = 10959299376480.

The previous prime is 22221001022173. The next prime is 22221001022237. The reversal of 22221001022222 is 22222010012222.

It is a junction number, because it is equal to n+sod(n) for n = 22221001022194 and 22221001022203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252800729 + ... + 252888612.

It is an arithmetic number, because the mean of its divisors is an integer number (2111758692192).

Almost surely, 2^{22221001022222} is an apocalyptic number.

22221001022222 is a deficient number, since it is larger than the sum of its proper divisors (11567138052850).

22221001022222 is a wasteful number, since it uses less digits than its factorization.

22221001022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505689643.

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

Adding to 22221001022222 its reverse (22222010012222), we get a palindrome (44443011034444).

The spelling of 22221001022222 in words is "twenty-two trillion, two hundred twenty-one billion, one million, twenty-two thousand, two hundred twenty-two".