12197040420 has 48 divisors (see below), whose sum is σ = 34169184000. Its totient is φ = 3250880256.

The previous prime is 12197040409. The next prime is 12197040433. The reversal of 12197040420 is 2404079121.

It is a super-2 number, since 2×12197040420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68581 + ... + 170579.

It is an arithmetic number, because the mean of its divisors is an integer number (711858000).

Almost surely, 2^12197040420 is an apocalyptic number.

12197040420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12197040420 is an abundant number, since it is smaller than the sum of its proper divisors (21972143580).

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

12197040420 is a wasteful number, since it uses less digits than its factorization.

12197040420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104004 (or 104002 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 12197040420 in words is "twelve billion, one hundred ninety-seven million, forty thousand, four hundred twenty".