1220929252 has 12 divisors (see below), whose sum is σ = 2138806656. Its totient is φ = 609841640.

The previous prime is 1220929249. The next prime is 1220929267. The reversal of 1220929252 is 2529290221.

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, 151324 + ... + 159187.

It is an arithmetic number, because the mean of its divisors is an integer number (178233888).

Almost surely, 2^1220929252 is an apocalyptic number.

It is an amenable number.

1220929252 is a deficient number, since it is larger than the sum of its proper divisors (917877404).

1220929252 is a wasteful number, since it uses less digits than its factorization.

1220929252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311498 (or 311496 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1220929252 is about 34941.7980647820. The cubic root of 1220929252 is about 1068.8009545739.

The spelling of 1220929252 in words is "one billion, two hundred twenty million, nine hundred twenty-nine thousand, two hundred fifty-two".