231533451333222 has 32 divisors (see below), whose sum is σ = 463444536921984. Its totient is φ = 77114882961600.

The previous prime is 231533451333187. The next prime is 231533451333227. The reversal of 231533451333222 is 222333154335132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231533451333227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192826858 + ... + 194023874.

It is an arithmetic number, because the mean of its divisors is an integer number (14482641778812).

Almost surely, 2^{231533451333222} is an apocalyptic number.

231533451333222 is an abundant number, since it is smaller than the sum of its proper divisors (231911085588762).

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

231533451333222 is a wasteful number, since it uses less digits than its factorization.

231533451333222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223284.

The product of its digits is 1166400, while the sum is 42.

The spelling of 231533451333222 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, four hundred fifty-one million, three hundred thirty-three thousand, two hundred twenty-two".