1031323220222 has 4 divisors (see below), whose sum is σ = 1546984830336. Its totient is φ = 515661610110.

The previous prime is 1031323220189. The next prime is 1031323220309. The reversal of 1031323220222 is 2220223231301.

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, 257830805054 + ... + 257830805057.

It is an arithmetic number, because the mean of its divisors is an integer number (386746207584).

Almost surely, 2^{1031323220222} is an apocalyptic number.

1031323220222 is a deficient number, since it is larger than the sum of its proper divisors (515661610114).

1031323220222 is an equidigital number, since it uses as much as digits as its factorization.

1031323220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515661610113.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1031323220222 its reverse (2220223231301), we get a palindrome (3251546451523).

The spelling of 1031323220222 in words is "one trillion, thirty-one billion, three hundred twenty-three million, two hundred twenty thousand, two hundred twenty-two".