1122252187 has 8 divisors (see below), whose sum is σ = 1286015456. Its totient is φ = 959349312.

The previous prime is 1122252151. The next prime is 1122252193. The reversal of 1122252187 is 7812522211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122252187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122232187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212298 + ... + 217519.

It is an arithmetic number, because the mean of its divisors is an integer number (160751932).

Almost surely, 2^1122252187 is an apocalyptic number.

1122252187 is a deficient number, since it is larger than the sum of its proper divisors (163763269).

1122252187 is an equidigital number, since it uses as much as digits as its factorization.

1122252187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430197.

The product of its digits is 4480, while the sum is 31.

The square root of 1122252187 is about 33500.0326417751. The cubic root of 1122252187 is about 1039.1944535685.

Adding to 1122252187 its reverse (7812522211), we get a palindrome (8934774398).

The spelling of 1122252187 in words is "one billion, one hundred twenty-two million, two hundred fifty-two thousand, one hundred eighty-seven".