1198208221530 has 64 divisors (see below), whose sum is σ = 2923152513408. Its totient is φ = 314250773760.

The previous prime is 1198208221499. The next prime is 1198208221531. The reversal of 1198208221530 is 351228028911.

It is not an unprimeable number, because it can be changed into a prime (1198208221531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20545572 + ... + 20603808.

It is an arithmetic number, because the mean of its divisors is an integer number (45674258022).

Almost surely, 2^{1198208221530} is an apocalyptic number.

1198208221530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1198208221530 is an abundant number, since it is smaller than the sum of its proper divisors (1724944291878).

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

1198208221530 is a wasteful number, since it uses less digits than its factorization.

1198208221530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69551.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 1198208221530 in words is "one trillion, one hundred ninety-eight billion, two hundred eight million, two hundred twenty-one thousand, five hundred thirty".