133311100022221 has 4 divisors (see below), whose sum is σ = 145430290933344. Its totient is φ = 121191909111100.

The previous prime is 133311100022213. The next prime is 133311100022251. The reversal of 133311100022221 is 122220001113331.

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 133311100022221 - 2³ = 133311100022213 is a prime.

It is a super-2 number, since 2×133311100022221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133311100022192 and 133311100022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133311100022251) 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, 6059595455545 + ... + 6059595455566.

It is an arithmetic number, because the mean of its divisors is an integer number (36357572733336).

Almost surely, 2^{133311100022221} is an apocalyptic number.

133311100022221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133311100022221 is a deficient number, since it is larger than the sum of its proper divisors (12119190911123).

133311100022221 is a wasteful number, since it uses less digits than its factorization.

133311100022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12119190911122.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 133311100022221 its reverse (122220001113331), we get a palindrome (255531101135552).

The spelling of 133311100022221 in words is "one hundred thirty-three trillion, three hundred eleven billion, one hundred million, twenty-two thousand, two hundred twenty-one".