22000012022 has 4 divisors (see below), whose sum is σ = 33000018036. Its totient is φ = 11000006010.

The previous prime is 22000011977. The next prime is 22000012031. The reversal of 22000012022 is 22021000022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22000011994 and 22000012012.

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, 5500003004 + ... + 5500003007.

It is an arithmetic number, because the mean of its divisors is an integer number (8250004509).

Almost surely, 2^22000012022 is an apocalyptic number.

22000012022 is a deficient number, since it is larger than the sum of its proper divisors (11000006014).

22000012022 is a wasteful number, since it uses less digits than its factorization.

22000012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000006013.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22000012022 its reverse (22021000022), we get a palindrome (44021012044).

The spelling of 22000012022 in words is "twenty-two billion, twelve thousand, twenty-two".