1212021092 has 12 divisors (see below), whose sum is σ = 2121307776. Its totient is φ = 605933160.

The previous prime is 1212021073. The next prime is 1212021113. The reversal of 1212021092 is 2901202121.

It is a happy number.

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, 29717 + ... + 57507.

It is an arithmetic number, because the mean of its divisors is an integer number (176775648).

Almost surely, 2^1212021092 is an apocalyptic number.

It is an amenable number.

1212021092 is a deficient number, since it is larger than the sum of its proper divisors (909286684).

1212021092 is a wasteful number, since it uses less digits than its factorization.

1212021092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38698 (or 38696 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1212021092 is about 34814.0932956755. The cubic root of 1212021092 is about 1066.1952070567.

The spelling of 1212021092 in words is "one billion, two hundred twelve million, twenty-one thousand, ninety-two".