1122499961 has 16 divisors (see below), whose sum is σ = 1240489728. Its totient is φ = 1007232000.

The previous prime is 1122499913. The next prime is 1122499991. The reversal of 1122499961 is 1699942211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122499961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122499991) 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, 406361 + ... + 409113.

It is an arithmetic number, because the mean of its divisors is an integer number (77530608).

Almost surely, 2^1122499961 is an apocalyptic number.

1122499961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122499961 is a deficient number, since it is larger than the sum of its proper divisors (117989767).

1122499961 is a wasteful number, since it uses less digits than its factorization.

1122499961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232.

The product of its digits is 69984, while the sum is 44.

The square root of 1122499961 is about 33503.7305534772. The cubic root of 1122499961 is about 1039.2709267006.

The spelling of 1122499961 in words is "one billion, one hundred twenty-two million, four hundred ninety-nine thousand, nine hundred sixty-one".