222020388 has 36 divisors (see below), whose sum is σ = 579324928. Its totient is φ = 71619120.

The previous prime is 222020353. The next prime is 222020389. The reversal of 222020388 is 883020222.

222020388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (222020389) 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, 98356 + ... + 100587.

Almost surely, 2^222020388 is an apocalyptic number.

It is an amenable number.

222020388 is an abundant number, since it is smaller than the sum of its proper divisors (357304540).

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

222020388 is a wasteful number, since it uses less digits than its factorization.

222020388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198984 (or 198979 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 222020388 is about 14900.3485865264. The cubic root of 222020388 is about 605.5234301705.

The spelling of 222020388 in words is "two hundred twenty-two million, twenty thousand, three hundred eighty-eight".