1012223220331 has 4 divisors (see below), whose sum is σ = 1031321771712. Its totient is φ = 993124668952.

The previous prime is 1012223220329. The next prime is 1012223220347. The reversal of 1012223220331 is 1330223222101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012223220331 - 2¹ = 1012223220329 is a prime.

It is a super-2 number, since 2×1012223220331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012223220301) 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 3 ways as a sum of consecutive naturals, for example, 9549275611 + ... + 9549275716.

It is an arithmetic number, because the mean of its divisors is an integer number (257830442928).

Almost surely, 2^{1012223220331} is an apocalyptic number.

1012223220331 is a deficient number, since it is larger than the sum of its proper divisors (19098551381).

1012223220331 is an equidigital number, since it uses as much as digits as its factorization.

1012223220331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19098551380.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1012223220331 its reverse (1330223222101), we get a palindrome (2342446442432).

The spelling of 1012223220331 in words is "one trillion, twelve billion, two hundred twenty-three million, two hundred twenty thousand, three hundred thirty-one".