2231412278 has 4 divisors (see below), whose sum is σ = 3347118420. Its totient is φ = 1115706138.

The previous prime is 2231412251. The next prime is 2231412283. The reversal of 2231412278 is 8722141322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8722141322 = 2 ⋅4361070661.

It is a super-3 number, since 3×2231412278³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557853068 + ... + 557853071.

It is an arithmetic number, because the mean of its divisors is an integer number (836779605).

Almost surely, 2^2231412278 is an apocalyptic number.

2231412278 is a deficient number, since it is larger than the sum of its proper divisors (1115706142).

2231412278 is a wasteful number, since it uses less digits than its factorization.

2231412278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115706141.

The product of its digits is 10752, while the sum is 32.

The square root of 2231412278 is about 47237.8267705025. The cubic root of 2231412278 is about 1306.7522988821.

The spelling of 2231412278 in words is "two billion, two hundred thirty-one million, four hundred twelve thousand, two hundred seventy-eight".