1222845190895 has 16 divisors (see below), whose sum is σ = 1577511383040. Its totient is φ = 907069038624.

The previous prime is 1222845190877. The next prime is 1222845190909. The reversal of 1222845190895 is 5980915482221.

It is a cyclic number.

It is not a de Polignac number, because 1222845190895 - 2⁸ = 1222845190639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222845190895.

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, 136932287 + ... + 136941216.

It is an arithmetic number, because the mean of its divisors is an integer number (98594461440).

Almost surely, 2^{1222845190895} is an apocalyptic number.

1222845190895 is a deficient number, since it is larger than the sum of its proper divisors (354666192145).

1222845190895 is a wasteful number, since it uses less digits than its factorization.

1222845190895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273873574.

The product of its (nonzero) digits is 4147200, while the sum is 56.

The spelling of 1222845190895 in words is "one trillion, two hundred twenty-two billion, eight hundred forty-five million, one hundred ninety thousand, eight hundred ninety-five".