1222130987 has 16 divisors (see below), whose sum is σ = 1546444032. Its totient is φ = 938092320.

The previous prime is 1222130983. The next prime is 1222131017. The reversal of 1222130987 is 7890312221.

It is not a de Polignac number, because 1222130987 - 2² = 1222130983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222130981) 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, 113288 + ... + 123605.

It is an arithmetic number, because the mean of its divisors is an integer number (96652752).

Almost surely, 2^1222130987 is an apocalyptic number.

1222130987 is a deficient number, since it is larger than the sum of its proper divisors (324313045).

1222130987 is a wasteful number, since it uses less digits than its factorization.

1222130987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236978.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1222130987 is about 34958.9900740854. The cubic root of 1222130987 is about 1069.1515056905.

The spelling of 1222130987 in words is "one billion, two hundred twenty-two million, one hundred thirty thousand, nine hundred eighty-seven".