1222250553144 has 24 divisors (see below), whose sum is σ = 3310261914960. Its totient is φ = 407416851024.

The previous prime is 1222250553077. The next prime is 1222250553233. The reversal of 1222250553144 is 4413550522221.

1222250553144 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 2 + 505 + 5 + 3 + 144 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1222250553099 and 1222250553108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8487850992 + ... + 8487851135.

It is an arithmetic number, because the mean of its divisors is an integer number (137927579790).

Almost surely, 2^{1222250553144} is an apocalyptic number.

It is an amenable number.

1222250553144 is an abundant number, since it is smaller than the sum of its proper divisors (2088011361816).

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

1222250553144 is a wasteful number, since it uses less digits than its factorization.

1222250553144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16975702139 (or 16975702132 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 1222250553144 in words is "one trillion, two hundred twenty-two billion, two hundred fifty million, five hundred fifty-three thousand, one hundred forty-four".