1212199340652 has 48 divisors (see below), whose sum is σ = 3142810550880. Its totient is φ = 404057251584.

The previous prime is 1212199340633. The next prime is 1212199340659. The reversal of 1212199340652 is 2560439912121.

It is a happy number.

1212199340652 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 199 + 3 + 406 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1212199340598 and 1212199340607.

It is not an unprimeable number, because it can be changed into a prime (1212199340659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5990928 + ... + 6189960.

It is an arithmetic number, because the mean of its divisors is an integer number (65475219810).

Almost surely, 2^{1212199340652} is an apocalyptic number.

1212199340652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212199340652 is an abundant number, since it is smaller than the sum of its proper divisors (1930611210228).

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

1212199340652 is a wasteful number, since it uses less digits than its factorization.

1212199340652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255439 (or 255431 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 1212199340652 in words is "one trillion, two hundred twelve billion, one hundred ninety-nine million, three hundred forty thousand, six hundred fifty-two".