222001131 has 32 divisors (see below), whose sum is σ = 333907200. Its totient is φ = 130032000.

The previous prime is 222001121. The next prime is 222001141. The reversal of 222001131 is 131100222.

It is an interprime number because it is at equal distance from previous prime (222001121) and next prime (222001141).

It is not a de Polignac number, because 222001131 - 2⁵ = 222001099 is a prime.

It is a super-2 number, since 2×222001131² = 98569004330558322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222001121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142545 + ... + 144093.

It is an arithmetic number, because the mean of its divisors is an integer number (10434600).

Almost surely, 2^222001131 is an apocalyptic number.

222001131 is a deficient number, since it is larger than the sum of its proper divisors (111906069).

222001131 is a wasteful number, since it uses less digits than its factorization.

222001131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 222001131 is about 14899.7023795779. The cubic root of 222001131 is about 605.5059229167.

Adding to 222001131 its reverse (131100222), we get a palindrome (353101353).

Subtracting from 222001131 its reverse (131100222), we obtain a palindrome (90900909).

The spelling of 222001131 in words is "two hundred twenty-two million, one thousand, one hundred thirty-one".