222620412 has 48 divisors (see below), whose sum is σ = 595105280. Its totient is φ = 63450432.

The previous prime is 222620383. The next prime is 222620413. The reversal of 222620412 is 214026222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222620413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33858 + ... + 39894.

Almost surely, 2^222620412 is an apocalyptic number.

It is an amenable number.

222620412 is an abundant number, since it is smaller than the sum of its proper divisors (372484868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222620412 is a wasteful number, since it uses less digits than its factorization.

222620412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6490 (or 6488 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 222620412 is about 14920.4695636565. The cubic root of 222620412 is about 606.0684278295.

Adding to 222620412 its reverse (214026222), we get a palindrome (436646634).

The spelling of 222620412 in words is "two hundred twenty-two million, six hundred twenty thousand, four hundred twelve".