22221220012022 has 8 divisors (see below), whose sum is σ = 33331863165336. Its totient is φ = 11110598956912.

The previous prime is 22221220012009. The next prime is 22221220012067. The reversal of 22221220012022 is 22021002212222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22221220011985 and 22221220012003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2727383 + ... + 7202850.

It is an arithmetic number, because the mean of its divisors is an integer number (4166482895667).

Almost surely, 2^{22221220012022} is an apocalyptic number.

22221220012022 is a deficient number, since it is larger than the sum of its proper divisors (11110643153314).

22221220012022 is a wasteful number, since it uses less digits than its factorization.

22221220012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11049102.

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

Adding to 22221220012022 its reverse (22021002212222), we get a palindrome (44242222224244).

The spelling of 22221220012022 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twenty million, twelve thousand, twenty-two".