1220285692 has 12 divisors (see below), whose sum is σ = 2136217720. Its totient is φ = 609937776.

The previous prime is 1220285683. The next prime is 1220285699. The reversal of 1220285692 is 2965820221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220285699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37467 + ... + 62002.

Almost surely, 2^1220285692 is an apocalyptic number.

It is an amenable number.

1220285692 is a deficient number, since it is larger than the sum of its proper divisors (915932028).

1220285692 is a wasteful number, since it uses less digits than its factorization.

1220285692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102540 (or 102538 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1220285692 is about 34932.5878228339. The cubic root of 1220285692 is about 1068.6131308511.

The spelling of 1220285692 in words is "one billion, two hundred twenty million, two hundred eighty-five thousand, six hundred ninety-two".