20222612 has 36 divisors (see below), whose sum is σ = 39019680. Its totient is φ = 9144432.

The previous prime is 20222611. The next prime is 20222621. The reversal of 20222612 is 21622202.

It is a super-2 number, since 2×20222612² = 817908072205088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39953 + ... + 40455.

It is an arithmetic number, because the mean of its divisors is an integer number (1083880).

Almost surely, 2^20222612 is an apocalyptic number.

It is an amenable number.

20222612 is a deficient number, since it is larger than the sum of its proper divisors (18797068).

20222612 is a wasteful number, since it uses less digits than its factorization.

20222612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20222612 is about 4496.9558592452. The cubic root of 20222612 is about 272.4451512648.

Adding to 20222612 its reverse (21622202), we get a palindrome (41844814).

The spelling of 20222612 in words is "twenty million, two hundred twenty-two thousand, six hundred twelve".