1219225197685 has 16 divisors (see below), whose sum is σ = 1598663500992. Its totient is φ = 885272080000.

The previous prime is 1219225197677. The next prime is 1219225197719. The reversal of 1219225197685 is 5867915229121.

It is a happy number.

It is not a de Polignac number, because 1219225197685 - 2³ = 1219225197677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17930191 + ... + 17998060.

It is an arithmetic number, because the mean of its divisors is an integer number (99916468812).

Almost surely, 2^{1219225197685} is an apocalyptic number.

It is an amenable number.

1219225197685 is a deficient number, since it is larger than the sum of its proper divisors (379438303307).

1219225197685 is a wasteful number, since it uses less digits than its factorization.

1219225197685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35928884.

The product of its digits is 5443200, while the sum is 58.

The spelling of 1219225197685 in words is "one trillion, two hundred nineteen billion, two hundred twenty-five million, one hundred ninety-seven thousand, six hundred eighty-five".