1222597755427 has 16 divisors (see below), whose sum is σ = 1284482396160. Its totient is φ = 1161443844000.

The previous prime is 1222597755343. The next prime is 1222597755433. The reversal of 1222597755427 is 7245577952221.

It is a cyclic number.

It is not a de Polignac number, because 1222597755427 - 2¹⁹ = 1222597231139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222597752427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17013102 + ... + 17084812.

It is an arithmetic number, because the mean of its divisors is an integer number (80280149760).

Almost surely, 2^{1222597755427} is an apocalyptic number.

1222597755427 is a deficient number, since it is larger than the sum of its proper divisors (61884640733).

1222597755427 is a wasteful number, since it uses less digits than its factorization.

1222597755427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76794.

The product of its digits is 24696000, while the sum is 58.

The spelling of 1222597755427 in words is "one trillion, two hundred twenty-two billion, five hundred ninety-seven million, seven hundred fifty-five thousand, four hundred twenty-seven".