1002221123031 has 8 divisors (see below), whose sum is σ = 1484772034160. Its totient is φ = 668147415336.

The previous prime is 1002221123027. The next prime is 1002221123039. The reversal of 1002221123031 is 1303211222001.

It is not a de Polignac number, because 1002221123031 - 2² = 1002221123027 is a prime.

It is a super-2 number, since 2×1002221123031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002221122995 and 1002221123013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002221123039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18559650400 + ... + 18559650453.

It is an arithmetic number, because the mean of its divisors is an integer number (185596504270).

Almost surely, 2^{1002221123031} is an apocalyptic number.

1002221123031 is a deficient number, since it is larger than the sum of its proper divisors (482550911129).

1002221123031 is an equidigital number, since it uses as much as digits as its factorization.

1002221123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37119300862 (or 37119300856 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1002221123031 its reverse (1303211222001), we get a palindrome (2305432345032).

The spelling of 1002221123031 in words is "one trillion, two billion, two hundred twenty-one million, one hundred twenty-three thousand, thirty-one".