1225832118918 has 96 divisors (see below), whose sum is σ = 2787099549696. Its totient is φ = 358788144000.

The previous prime is 1225832118913. The next prime is 1225832118923. The reversal of 1225832118918 is 8198112385221.

It is an interprime number because it is at equal distance from previous prime (1225832118913) and next prime (1225832118923).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225832118913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11673355 + ... + 11777897.

It is an arithmetic number, because the mean of its divisors is an integer number (29032286976).

Almost surely, 2^{1225832118918} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225832118918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1393549774848).

1225832118918 is an abundant number, since it is smaller than the sum of its proper divisors (1561267430778).

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

1225832118918 is a wasteful number, since it uses less digits than its factorization.

1225832118918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105122 (or 105111 counting only the distinct ones).

The product of its digits is 552960, while the sum is 51.

The spelling of 1225832118918 in words is "one trillion, two hundred twenty-five billion, eight hundred thirty-two million, one hundred eighteen thousand, nine hundred eighteen".