3031121221001 has 8 divisors (see below), whose sum is σ = 3069816006600. Its totient is φ = 2992529485440.

The previous prime is 3031121220997. The next prime is 3031121221003. The reversal of 3031121221001 is 1001221211303.

It can be written as a sum of positive squares in 4 ways, for example, as 677412948601 + 2353708272400 = 823051^2 + 1534180^2 .

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 3031121221001 - 2² = 3031121220997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3031121221003) 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, 25703306 + ... + 25820963.

It is an arithmetic number, because the mean of its divisors is an integer number (383727000825).

Almost surely, 2^{3031121221001} is an apocalyptic number.

It is an amenable number.

3031121221001 is a deficient number, since it is larger than the sum of its proper divisors (38694785599).

3031121221001 is an equidigital number, since it uses as much as digits as its factorization.

3031121221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51525019.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 3031121221001 its reverse (1001221211303), we get a palindrome (4032342432304).

The spelling of 3031121221001 in words is "three trillion, thirty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, one".