1031111312222 has 8 divisors (see below), whose sum is σ = 1546692767976. Its totient is φ = 515547056232.

The previous prime is 1031111312213. The next prime is 1031111312243. The reversal of 1031111312222 is 2222131111301.

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

It is a junction number, because it is equal to n+sod(n) for n = 1031111312194 and 1031111312203.

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, 4149008 + ... + 4390499.

It is an arithmetic number, because the mean of its divisors is an integer number (193336595997).

Almost surely, 2^{1031111312222} is an apocalyptic number.

1031111312222 is a deficient number, since it is larger than the sum of its proper divisors (515581455754).

1031111312222 is an equidigital number, since it uses as much as digits as its factorization.

1031111312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599882.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1031111312222 its reverse (2222131111301), we get a palindrome (3253242423523).

The spelling of 1031111312222 in words is "one trillion, thirty-one billion, one hundred eleven million, three hundred twelve thousand, two hundred twenty-two".