1231022233222 has 4 divisors (see below), whose sum is σ = 1846533349836. Its totient is φ = 615511116610.

The previous prime is 1231022233171. The next prime is 1231022233241. The reversal of 1231022233222 is 2223322201321.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307755558304 + ... + 307755558307.

It is an arithmetic number, because the mean of its divisors is an integer number (461633337459).

Almost surely, 2^{1231022233222} is an apocalyptic number.

1231022233222 is a deficient number, since it is larger than the sum of its proper divisors (615511116614).

1231022233222 is an equidigital number, since it uses as much as digits as its factorization.

1231022233222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615511116613.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1231022233222 its reverse (2223322201321), we get a palindrome (3454344434543).

The spelling of 1231022233222 in words is "one trillion, two hundred thirty-one billion, twenty-two million, two hundred thirty-three thousand, two hundred twenty-two".