1197425220 has 144 divisors (see below), whose sum is σ = 3650109120. Its totient is φ = 292481280.

The previous prime is 1197425219. The next prime is 1197425233. The reversal of 1197425220 is 225247911.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1094994 + ... + 1096086.

It is an arithmetic number, because the mean of its divisors is an integer number (25347980).

Almost surely, 2^1197425220 is an apocalyptic number.

1197425220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197425220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825054560).

1197425220 is an abundant number, since it is smaller than the sum of its proper divisors (2452683900).

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

1197425220 is a wasteful number, since it uses less digits than its factorization.

1197425220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1197425220 is about 34603.8324467103. The cubic root of 1197425220 is about 1061.8979938271.

The spelling of 1197425220 in words is "one billion, one hundred ninety-seven million, four hundred twenty-five thousand, two hundred twenty".