221112431230254 has 16 divisors (see below), whose sum is σ = 442243923333840. Its totient is φ = 73700966931200.

The previous prime is 221112431230253. The next prime is 221112431230261. The reversal of 221112431230254 is 452032134211122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112431230253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794052249 + ... + 794330660.

It is an arithmetic number, because the mean of its divisors is an integer number (27640245208365).

Almost surely, 2^{221112431230254} is an apocalyptic number.

221112431230254 is an abundant number, since it is smaller than the sum of its proper divisors (221131492103586).

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

221112431230254 is a wasteful number, since it uses less digits than its factorization.

221112431230254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588406115.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 221112431230254 its reverse (452032134211122), we get a palindrome (673144565441376).

The spelling of 221112431230254 in words is "two hundred twenty-one trillion, one hundred twelve billion, four hundred thirty-one million, two hundred thirty thousand, two hundred fifty-four".