12940222020 has 48 divisors (see below), whose sum is σ = 39526498368. Its totient is φ = 3137023360.

The previous prime is 12940222019. The next prime is 12940222063. The reversal of 12940222020 is 2022204921.

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 15 ways as a sum of consecutive naturals, for example, 9802539 + ... + 9803858.

It is an arithmetic number, because the mean of its divisors is an integer number (823468716).

Almost surely, 2^12940222020 is an apocalyptic number.

12940222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12940222020 is an abundant number, since it is smaller than the sum of its proper divisors (26586276348).

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

12940222020 is a wasteful number, since it uses less digits than its factorization.

12940222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19606420 (or 19606418 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12940222020 its reverse (2022204921), we get a palindrome (14962426941).

The spelling of 12940222020 in words is "twelve billion, nine hundred forty million, two hundred twenty-two thousand, twenty".