1001231223022 has 4 divisors (see below), whose sum is σ = 1501846834536. Its totient is φ = 500615611510.

The previous prime is 1001231223017. The next prime is 1001231223029. The reversal of 1001231223022 is 2203221321001.

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 (1001231223029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250307805754 + ... + 250307805757.

It is an arithmetic number, because the mean of its divisors is an integer number (375461708634).

Almost surely, 2^{1001231223022} is an apocalyptic number.

1001231223022 is a deficient number, since it is larger than the sum of its proper divisors (500615611514).

1001231223022 is an equidigital number, since it uses as much as digits as its factorization.

1001231223022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500615611513.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1001231223022 its reverse (2203221321001), we get a palindrome (3204452544023).

The spelling of 1001231223022 in words is "one trillion, one billion, two hundred thirty-one million, two hundred twenty-three thousand, twenty-two".