22012022 has 4 divisors (see below), whose sum is σ = 33018036. Its totient is φ = 11006010.

The previous prime is 22012019. The next prime is 22012031. The reversal of 22012022 is 22021022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22021022 = 2 ⋅11010511.

It is a super-2 number, since 2×22012022² = 969058225056968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22011994 and 22012012.

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, 5503004 + ... + 5503007.

It is an arithmetic number, because the mean of its divisors is an integer number (8254509).

Almost surely, 2^22012022 is an apocalyptic number.

22012022 is a deficient number, since it is larger than the sum of its proper divisors (11006014).

22012022 is a wasteful number, since it uses less digits than its factorization.

22012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006013.

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

The square root of 22012022 is about 4691.6971343001. The cubic root of 22012022 is about 280.2549633424.

Adding to 22012022 its reverse (22021022), we get a palindrome (44033044).

The spelling of 22012022 in words is "twenty-two million, twelve thousand, twenty-two".