1222242638598 has 32 divisors (see below), whose sum is σ = 2716159701600. Its totient is φ = 407404470528.

The previous prime is 1222242638569. The next prime is 1222242638623. The reversal of 1222242638598 is 8958362422221.

1222242638598 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 2 + 42 + 6 + 3 + 8 + 598 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2218558 + ... + 2714126.

It is an arithmetic number, because the mean of its divisors is an integer number (84879990675).

Almost surely, 2^{1222242638598} is an apocalyptic number.

1222242638598 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1222242638598 is an abundant number, since it is smaller than the sum of its proper divisors (1493917063002).

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

1222242638598 is a wasteful number, since it uses less digits than its factorization.

1222242638598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541253 (or 541247 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 1222242638598 in words is "one trillion, two hundred twenty-two billion, two hundred forty-two million, six hundred thirty-eight thousand, five hundred ninety-eight".