133131210144221 has 16 divisors (see below), whose sum is σ = 134952103157760. Its totient is φ = 131313723231600.

The previous prime is 133131210144217. The next prime is 133131210144263. The reversal of 133131210144221 is 122441012131331.

It is a cyclic number.

It is not a de Polignac number, because 133131210144221 - 2² = 133131210144217 is a prime.

It is a super-2 number, since 2×133131210144221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133131210144271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134063196 + ... + 2134125578.

It is an arithmetic number, because the mean of its divisors is an integer number (8434506447360).

Almost surely, 2^{133131210144221} is an apocalyptic number.

It is an amenable number.

133131210144221 is a deficient number, since it is larger than the sum of its proper divisors (1820893013539).

133131210144221 is a wasteful number, since it uses less digits than its factorization.

133131210144221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89216.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 133131210144221 its reverse (122441012131331), we get a palindrome (255572222275552).

The spelling of 133131210144221 in words is "one hundred thirty-three trillion, one hundred thirty-one billion, two hundred ten million, one hundred forty-four thousand, two hundred twenty-one".