12142104220 has 24 divisors (see below), whose sum is σ = 25513087824. Its totient is φ = 4854047616.

The previous prime is 12142104217. The next prime is 12142104239. The reversal of 12142104220 is 2240124121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138817 + ... + 208696.

It is an arithmetic number, because the mean of its divisors is an integer number (1063045326).

Almost surely, 2^12142104220 is an apocalyptic number.

12142104220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12142104220 is an abundant number, since it is smaller than the sum of its proper divisors (13370983604).

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

12142104220 is a wasteful number, since it uses less digits than its factorization.

12142104220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349269 (or 349267 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12142104220 its reverse (2240124121), we get a palindrome (14382228341).

The spelling of 12142104220 in words is "twelve billion, one hundred forty-two million, one hundred four thousand, two hundred twenty".