1121957412 has 12 divisors (see below), whose sum is σ = 2617900656. Its totient is φ = 373985800.

The previous prime is 1121957359. The next prime is 1121957437. The reversal of 1121957412 is 2147591211.

1121957412 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46748214 + ... + 46748237.

It is an arithmetic number, because the mean of its divisors is an integer number (218158388).

Almost surely, 2^1121957412 is an apocalyptic number.

1121957412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121957412 is an abundant number, since it is smaller than the sum of its proper divisors (1495943244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121957412 is a wasteful number, since it uses less digits than its factorization.

1121957412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93496458 (or 93496456 counting only the distinct ones).

The product of its digits is 5040, while the sum is 33.

The square root of 1121957412 is about 33495.6327302531. The cubic root of 1121957412 is about 1039.1034593537.

The spelling of 1121957412 in words is "one billion, one hundred twenty-one million, nine hundred fifty-seven thousand, four hundred twelve".