1231331100222 has 8 divisors (see below), whose sum is σ = 2462662200456. Its totient is φ = 410443700072.

The previous prime is 1231331100149. The next prime is 1231331100253. The reversal of 1231331100222 is 2220011331321.

It is a sphenic number, since it is the product of 3 distinct primes.

1231331100222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102610925013 + ... + 102610925024.

It is an arithmetic number, because the mean of its divisors is an integer number (307832775057).

Almost surely, 2^{1231331100222} is an apocalyptic number.

1231331100222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1231331100222 is a wasteful number, since it uses less digits than its factorization.

1231331100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205221850042.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1231331100222 its reverse (2220011331321), we get a palindrome (3451342431543).

The spelling of 1231331100222 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-one million, one hundred thousand, two hundred twenty-two".