12220195140 has 96 divisors (see below), whose sum is σ = 38945733120. Its totient is φ = 3179232000.

The previous prime is 12220195139. The next prime is 12220195177. The reversal of 12220195140 is 4159102221.

12220195140 is a `hidden beast` number, since 122 + 20 + 1 + 9 + 514 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253836 + ... + 298115.

It is an arithmetic number, because the mean of its divisors is an integer number (405684720).

Almost surely, 2^12220195140 is an apocalyptic number.

12220195140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220195140 is an abundant number, since it is smaller than the sum of its proper divisors (26725537980).

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

12220195140 is a wasteful number, since it uses less digits than its factorization.

12220195140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552010 (or 552002 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 12220195140 its reverse (4159102221), we get a palindrome (16379297361).

The spelling of 12220195140 in words is "twelve billion, two hundred twenty million, one hundred ninety-five thousand, one hundred forty".