1219201187904 has 168 divisors, whose sum is σ = 4169405712480. Its totient is φ = 348343172352.

The previous prime is 1219201187873. The next prime is 1219201187933. The reversal of 1219201187904 is 4097811029121.

It is a tau number, because it is divible by the number of its divisors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 1219201187904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7114882 + ... + 7284225.

Almost surely, 2^{1219201187904} is an apocalyptic number.

1219201187904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1219201187904 is an abundant number, since it is smaller than the sum of its proper divisors (2950204524576).

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

1219201187904 is a wasteful number, since it uses less digits than its factorization.

1219201187904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14399142 (or 14399119 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The spelling of 1219201187904 in words is "one trillion, two hundred nineteen billion, two hundred one million, one hundred eighty-seven thousand, nine hundred four".