1212320896 has 32 divisors (see below), whose sum is σ = 2423116080. Its totient is φ = 604166400.

The previous prime is 1212320891. The next prime is 1212320903. The reversal of 1212320896 is 6980232121.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1212320891) 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, 23871 + ... + 54721.

Almost surely, 2^1212320896 is an apocalyptic number.

1212320896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1212320896 is a deficient number, since it is larger than the sum of its proper divisors (1210795184).

1212320896 is an equidigital number, since it uses as much as digits as its factorization.

1212320896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31172 (or 31160 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1212320896 is about 34818.3988144199. The cubic root of 1212320896 is about 1066.2831107072.

The spelling of 1212320896 in words is "one billion, two hundred twelve million, three hundred twenty thousand, eight hundred ninety-six".