1021312443022 has 4 divisors (see below), whose sum is σ = 1531968664536. Its totient is φ = 510656221510.

The previous prime is 1021312443007. The next prime is 1021312443029. The reversal of 1021312443022 is 2203442131201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021312443029) 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 as a sum of consecutive naturals, namely, 255328110754 + ... + 255328110757.

It is an arithmetic number, because the mean of its divisors is an integer number (382992166134).

Almost surely, 2^{1021312443022} is an apocalyptic number.

1021312443022 is a deficient number, since it is larger than the sum of its proper divisors (510656221514).

1021312443022 is an equidigital number, since it uses as much as digits as its factorization.

1021312443022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510656221513.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1021312443022 its reverse (2203442131201), we get a palindrome (3224754574223).

The spelling of 1021312443022 in words is "one trillion, twenty-one billion, three hundred twelve million, four hundred forty-three thousand, twenty-two".