1122019972 has 12 divisors (see below), whose sum is σ = 1974505680. Its totient is φ = 557875496.

The previous prime is 1122019961. The next prime is 1122019973. The reversal of 1122019972 is 2799102211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1122019973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782818 + ... + 784249.

It is an arithmetic number, because the mean of its divisors is an integer number (164542140).

Almost surely, 2^1122019972 is an apocalyptic number.

It is an amenable number.

1122019972 is a deficient number, since it is larger than the sum of its proper divisors (852485708).

1122019972 is a wasteful number, since it uses less digits than its factorization.

1122019972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567250 (or 1567248 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 1122019972 is about 33496.5665703218. The cubic root of 1122019972 is about 1039.1227723578.

The spelling of 1122019972 in words is "one billion, one hundred twenty-two million, nineteen thousand, nine hundred seventy-two".