1222257775216 has 10 divisors (see below), whose sum is σ = 2368124439512. Its totient is φ = 611128887600.

The previous prime is 1222257775163. The next prime is 1222257775217. The reversal of 1222257775216 is 6125777522221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222257775216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222257775217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38195555460 + ... + 38195555491.

Almost surely, 2^{1222257775216} is an apocalyptic number.

1222257775216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222257775216 is a deficient number, since it is larger than the sum of its proper divisors (1145866664296).

1222257775216 is an equidigital number, since it uses as much as digits as its factorization.

1222257775216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76391110959 (or 76391110953 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The spelling of 1222257775216 in words is "one trillion, two hundred twenty-two billion, two hundred fifty-seven million, seven hundred seventy-five thousand, two hundred sixteen".