222321020124 has 36 divisors (see below), whose sum is σ = 603442770504. Its totient is φ = 63520291296.

The previous prime is 222321020123. The next prime is 222321020143. The reversal of 222321020124 is 421020123222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222321020124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222321020123) 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, 189047899 + ... + 189049074.

Almost surely, 2^222321020124 is an apocalyptic number.

It is an amenable number.

222321020124 is an abundant number, since it is smaller than the sum of its proper divisors (381121750380).

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

222321020124 is a wasteful number, since it uses less digits than its factorization.

222321020124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378096994 (or 378096985 counting only the distinct ones).

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

Adding to 222321020124 its reverse (421020123222), we get a palindrome (643341143346).

The spelling of 222321020124 in words is "two hundred twenty-two billion, three hundred twenty-one million, twenty thousand, one hundred twenty-four".