222131001 has 8 divisors (see below), whose sum is σ = 298507264. Its totient is φ = 146921040.

The previous prime is 222130999. The next prime is 222131023. The reversal of 222131001 is 100131222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222131001 - 2¹ = 222130999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222131051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291130 + ... + 291891.

It is an arithmetic number, because the mean of its divisors is an integer number (37313408).

Almost surely, 2^222131001 is an apocalyptic number.

It is an amenable number.

222131001 is a deficient number, since it is larger than the sum of its proper divisors (76376263).

222131001 is a wasteful number, since it uses less digits than its factorization.

222131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583151.

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

The square root of 222131001 is about 14904.0598831325. The cubic root of 222131001 is about 605.6239729535.

Adding to 222131001 its reverse (100131222), we get a palindrome (322262223).

The spelling of 222131001 in words is "two hundred twenty-two million, one hundred thirty-one thousand, one".