1000221334031 has 4 divisors (see below), whose sum is σ = 1000236640200. Its totient is φ = 1000206027864.

The previous prime is 1000221334027. The next prime is 1000221334061. The reversal of 1000221334031 is 1304331220001.

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 1000221334031 - 2² = 1000221334027 is a prime.

It is a super-2 number, since 2×1000221334031² (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 = 1000221333994 and 1000221334012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000221334061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7554641 + ... + 7685898.

It is an arithmetic number, because the mean of its divisors is an integer number (250059160050).

Almost surely, 2^{1000221334031} is an apocalyptic number.

1000221334031 is a deficient number, since it is larger than the sum of its proper divisors (15306169).

1000221334031 is an equidigital number, since it uses as much as digits as its factorization.

1000221334031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15306168.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1000221334031 its reverse (1304331220001), we get a palindrome (2304552554032).

The spelling of 1000221334031 in words is "one trillion, two hundred twenty-one million, three hundred thirty-four thousand, thirty-one".