20003221031995 has 8 divisors (see below), whose sum is σ = 24009681561984. Its totient is φ = 15998699276544.

The previous prime is 20003221031977. The next prime is 20003221032017. The reversal of 20003221031995 is 59913012230002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20003221031995 - 2²⁵ = 20003187477563 is a prime.

It is a super-2 number, since 2×20003221031995² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484670934 + ... + 484712203.

It is an arithmetic number, because the mean of its divisors is an integer number (3001210195248).

Almost surely, 2^{20003221031995} is an apocalyptic number.

20003221031995 is a deficient number, since it is larger than the sum of its proper divisors (4006460529989).

20003221031995 is an equidigital number, since it uses as much as digits as its factorization.

20003221031995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969387269.

The product of its (nonzero) digits is 29160, while the sum is 37.

Adding to 20003221031995 its reverse (59913012230002), we get a palindrome (79916233261997).

The spelling of 20003221031995 in words is "twenty trillion, three billion, two hundred twenty-one million, thirty-one thousand, nine hundred ninety-five".