22012212022 has 4 divisors (see below), whose sum is σ = 33018318036. Its totient is φ = 11006106010.

The previous prime is 22012211989. The next prime is 22012212041. The reversal of 22012212022 is 22021221022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22021221022 = 2 ⋅11010610511.

It is a junction number, because it is equal to n+sod(n) for n = 22012211987 and 22012212005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5503053004 + ... + 5503053007.

It is an arithmetic number, because the mean of its divisors is an integer number (8254579509).

Almost surely, 2^22012212022 is an apocalyptic number.

22012212022 is a deficient number, since it is larger than the sum of its proper divisors (11006106014).

22012212022 is a wasteful number, since it uses less digits than its factorization.

22012212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006106013.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22012212022 its reverse (22021221022), we get a palindrome (44033433044).

The spelling of 22012212022 in words is "twenty-two billion, twelve million, two hundred twelve thousand, twenty-two".