31220122120001 has 8 divisors (see below), whose sum is σ = 31611305617920. Its totient is φ = 30830779486288.

The previous prime is 31220122119943. The next prime is 31220122120079. The reversal of 31220122120001 is 10002122102213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31220122120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31220172120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460181921 + ... + 460249758.

It is an arithmetic number, because the mean of its divisors is an integer number (3951413202240).

Almost surely, 2^{31220122120001} is an apocalyptic number.

It is an amenable number.

31220122120001 is a deficient number, since it is larger than the sum of its proper divisors (391183497919).

31220122120001 is a wasteful number, since it uses less digits than its factorization.

31220122120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920432103.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31220122120001 its reverse (10002122102213), we get a palindrome (41222244222214).

It can be divided in two parts, 31220 and 122120001, that added together give a palindrome (122151221).

The spelling of 31220122120001 in words is "thirty-one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twenty thousand, one".