12121074374 has 4 divisors (see below), whose sum is σ = 18181611564. Its totient is φ = 6060537186.

The previous prime is 12121074373. The next prime is 12121074379. The reversal of 12121074374 is 47347012121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47347012121 = 163 ⋅290472467.

It is a self number, because there is not a number n which added to its sum of digits gives 12121074374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121074373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030268592 + ... + 3030268595.

It is an arithmetic number, because the mean of its divisors is an integer number (4545402891).

Almost surely, 2^12121074374 is an apocalyptic number.

12121074374 is a deficient number, since it is larger than the sum of its proper divisors (6060537190).

12121074374 is an equidigital number, since it uses as much as digits as its factorization.

12121074374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060537189.

The product of its (nonzero) digits is 9408, while the sum is 32.

Adding to 12121074374 its reverse (47347012121), we get a palindrome (59468086495).

The spelling of 12121074374 in words is "twelve billion, one hundred twenty-one million, seventy-four thousand, three hundred seventy-four".