12142222040 has 32 divisors (see below), whose sum is σ = 29421539280. Its totient is φ = 4483281792.

The previous prime is 12142221989. The next prime is 12142222049. The reversal of 12142222040 is 4022224121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142222049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11674694 + ... + 11675733.

Almost surely, 2^12142222040 is an apocalyptic number.

12142222040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12142222040 is an abundant number, since it is smaller than the sum of its proper divisors (17279317240).

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

12142222040 is a wasteful number, since it uses less digits than its factorization.

12142222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23350451 (or 23350447 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12142222040 its reverse (4022224121), we get a palindrome (16164446161).

The spelling of 12142222040 in words is "twelve billion, one hundred forty-two million, two hundred twenty-two thousand, forty".