222032381 has 6 divisors (see below), whose sum is σ = 229771710. Its totient is φ = 214298616.

The previous prime is 222032357. The next prime is 222032413. The reversal of 222032381 is 183230222.

It can be written as a sum of positive squares in only one way, i.e., 191407225 + 30625156 = 13835^2 + 5534^2 .

It is not a de Polignac number, because 222032381 - 2²² = 217838077 is a prime.

It is a super-2 number, since 2×222032381² = 98596756425058322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222032311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78860 + ... + 81626.

It is an arithmetic number, because the mean of its divisors is an integer number (38295285).

Almost surely, 2^222032381 is an apocalyptic number.

It is an amenable number.

222032381 is a deficient number, since it is larger than the sum of its proper divisors (7739329).

222032381 is an frugal number, since it uses more digits than its factorization.

222032381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 222032381 is about 14900.7510213412. The cubic root of 222032381 is about 605.5343329406.

The spelling of 222032381 in words is "two hundred twenty-two million, thirty-two thousand, three hundred eighty-one".