12421012142 has 32 divisors (see below), whose sum is σ = 23234411520. Its totient is φ = 4838208480.

The previous prime is 12421012133. The next prime is 12421012151. The reversal of 12421012142 is 24121012421.

It is an interprime number because it is at equal distance from previous prime (12421012133) and next prime (12421012151).

It is a super-2 number, since 2×12421012142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961784 + ... + 974612.

It is an arithmetic number, because the mean of its divisors is an integer number (726075360).

Almost surely, 2^12421012142 is an apocalyptic number.

12421012142 is a deficient number, since it is larger than the sum of its proper divisors (10813399378).

12421012142 is a wasteful number, since it uses less digits than its factorization.

12421012142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19136.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12421012142 its reverse (24121012421), we get a palindrome (36542024563).

The spelling of 12421012142 in words is "twelve billion, four hundred twenty-one million, twelve thousand, one hundred forty-two".