222021332 has 24 divisors (see below), whose sum is σ = 432856200. Its totient is φ = 98937216.

The previous prime is 222021311. The next prime is 222021353. The reversal of 222021332 is 233120222.

It is an interprime number because it is at equal distance from previous prime (222021311) and next prime (222021353).

It can be written as a sum of positive squares in 4 ways, for example, as 28366276 + 193655056 = 5326^2 + 13916^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222021332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72107 + ... + 75122.

It is an arithmetic number, because the mean of its divisors is an integer number (18035675).

Almost surely, 2^222021332 is an apocalyptic number.

It is an amenable number.

222021332 is a deficient number, since it is larger than the sum of its proper divisors (210834868).

222021332 is a wasteful number, since it uses less digits than its factorization.

222021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147275 (or 147273 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222021332 is about 14900.3802636040. The cubic root of 222021332 is about 605.5242883699.

Adding to 222021332 its reverse (233120222), we get a palindrome (455141554).

The spelling of 222021332 in words is "two hundred twenty-two million, twenty-one thousand, three hundred thirty-two".