222045131 has 16 divisors (see below), whose sum is σ = 278961408. Its totient is φ = 171693600.

The previous prime is 222045127. The next prime is 222045137. The reversal of 222045131 is 131540222.

It is a cyclic number.

It is not a de Polignac number, because 222045131 - 2² = 222045127 is a prime.

It is a super-2 number, since 2×222045131² = 98608080401614322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222045137) 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, 920 + ... + 21093.

It is an arithmetic number, because the mean of its divisors is an integer number (17435088).

Almost surely, 2^222045131 is an apocalyptic number.

222045131 is a deficient number, since it is larger than the sum of its proper divisors (56916277).

222045131 is a wasteful number, since it uses less digits than its factorization.

222045131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22162.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 222045131 is about 14901.1788459840. The cubic root of 222045131 is about 605.5459234646.

Adding to 222045131 its reverse (131540222), we get a palindrome (353585353).

The spelling of 222045131 in words is "two hundred twenty-two million, forty-five thousand, one hundred thirty-one".