331221022133101 has 4 divisors (see below), whose sum is σ = 345621936138912. Its totient is φ = 316820108127292.

The previous prime is 331221022133021. The next prime is 331221022133123. The reversal of 331221022133101 is 101331220122133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331221022133101 - 2²¹ = 331221020035949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331221022133171) 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, 7200457002871 + ... + 7200457002916.

It is an arithmetic number, because the mean of its divisors is an integer number (86405484034728).

Almost surely, 2^{331221022133101} is an apocalyptic number.

It is an amenable number.

331221022133101 is a deficient number, since it is larger than the sum of its proper divisors (14400914005811).

331221022133101 is a wasteful number, since it uses less digits than its factorization.

331221022133101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14400914005810.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 331221022133101 its reverse (101331220122133), we get a palindrome (432552242255234).

The spelling of 331221022133101 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, twenty-two million, one hundred thirty-three thousand, one hundred one".