222130987 has 8 divisors (see below), whose sum is σ = 249619104. Its totient is φ = 196128768.

The previous prime is 222130973. The next prime is 222130999. The reversal of 222130987 is 789031222.

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

It is a cyclic number.

It is not a de Polignac number, because 222130987 - 2¹⁹ = 221606699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222130187) 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, 371158 + ... + 371755.

It is an arithmetic number, because the mean of its divisors is an integer number (31202388).

Almost surely, 2^222130987 is an apocalyptic number.

222130987 is a deficient number, since it is larger than the sum of its proper divisors (27488117).

222130987 is a wasteful number, since it uses less digits than its factorization.

222130987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742949.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 222130987 is about 14904.0594134618. The cubic root of 222130987 is about 605.6239602301.

The spelling of 222130987 in words is "two hundred twenty-two million, one hundred thirty thousand, nine hundred eighty-seven".