1112299921 has 2 divisors, whose sum is σ = 1112299922. Its totient is φ = 1112299920.

The previous prime is 1112299907. The next prime is 1112299939. The reversal of 1112299921 is 1299922111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813390400 + 298909521 = 28520^2 + 17289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112299921 - 2¹¹ = 1112297873 is a prime.

It is a super-2 number, since 2×1112299921² = 2474422228513212482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1112299961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556149960 + 556149961.

It is an arithmetic number, because the mean of its divisors is an integer number (556149961).

Almost surely, 2^1112299921 is an apocalyptic number.

It is an amenable number.

1112299921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112299921 is an equidigital number, since it uses as much as digits as its factorization.

1112299921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 37.

The square root of 1112299921 is about 33351.1607144339. The cubic root of 1112299921 is about 1036.1134278619.

It can be divided in two parts, 111 and 2299921, that added together give a palindrome (2300032).

The spelling of 1112299921 in words is "one billion, one hundred twelve million, two hundred ninety-nine thousand, nine hundred twenty-one".