1122249998 has 16 divisors (see below), whose sum is σ = 1710167904. Its totient is φ = 552222720.

The previous prime is 1122249979. The next prime is 1122250009. The reversal of 1122249998 is 8999422211.

It is a super-2 number, since 2×1122249998² = 2518890116022000008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75086 + ... + 88782.

It is an arithmetic number, because the mean of its divisors is an integer number (106885494).

Almost surely, 2^1122249998 is an apocalyptic number.

1122249998 is a deficient number, since it is larger than the sum of its proper divisors (587917906).

1122249998 is a wasteful number, since it uses less digits than its factorization.

1122249998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347.

The product of its digits is 186624, while the sum is 47.

The square root of 1122249998 is about 33499.9999701493. Note that the first 4 decimals coincide. The cubic root of 1122249998 is about 1039.1937779039.

The spelling of 1122249998 in words is "one billion, one hundred twenty-two million, two hundred forty-nine thousand, nine hundred ninety-eight".