133101201021221 has 16 divisors (see below), whose sum is σ = 142053714302976. Its totient is φ = 124273654235136.

The previous prime is 133101201021209. The next prime is 133101201021277. The reversal of 133101201021221 is 122120102101331.

It is a de Polignac number, because none of the positive numbers 2^k-133101201021221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133101201021193 and 133101201021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133101201021281) 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, 20140325 + ... + 25919781.

It is an arithmetic number, because the mean of its divisors is an integer number (8878357143936).

Almost surely, 2^{133101201021221} is an apocalyptic number.

It is an amenable number.

133101201021221 is a deficient number, since it is larger than the sum of its proper divisors (8952513281755).

133101201021221 is a wasteful number, since it uses less digits than its factorization.

133101201021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790268.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 133101201021221 its reverse (122120102101331), we get a palindrome (255221303122552).

The spelling of 133101201021221 in words is "one hundred thirty-three trillion, one hundred one billion, two hundred one million, twenty-one thousand, two hundred twenty-one".