12121274 has 16 divisors (see below), whose sum is σ = 20372256. Its totient is φ = 5360400.

The previous prime is 12121273. The next prime is 12121283. The reversal of 12121274 is 47212121.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12121273) 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, 6632 + ... + 8259.

It is an arithmetic number, because the mean of its divisors is an integer number (1273266).

Almost surely, 2^12121274 is an apocalyptic number.

12121274 is a deficient number, since it is larger than the sum of its proper divisors (8250982).

12121274 is a wasteful number, since it uses less digits than its factorization.

12121274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14941.

The product of its digits is 224, while the sum is 20.

The square root of 12121274 is about 3481.5620057670. The cubic root of 12121274 is about 229.7115097520.

Adding to 12121274 its reverse (47212121), we get a palindrome (59333395).

The spelling of 12121274 in words is "twelve million, one hundred twenty-one thousand, two hundred seventy-four".