133121022231 has 8 divisors (see below), whose sum is σ = 179926130800. Its totient is φ = 87531630912.

The previous prime is 133121022193. The next prime is 133121022263. The reversal of 133121022231 is 132220121331.

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

It is not a de Polignac number, because 133121022231 - 2¹¹ = 133121020183 is a prime.

It is a super-2 number, since 2×133121022231² (a number of 23 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 = 133121022198 and 133121022207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121026231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303929056 + ... + 303929493.

It is an arithmetic number, because the mean of its divisors is an integer number (22490766350).

Almost surely, 2^133121022231 is an apocalyptic number.

133121022231 is a deficient number, since it is larger than the sum of its proper divisors (46805108569).

133121022231 is an equidigital number, since it uses as much as digits as its factorization.

133121022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607858625.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 133121022231 its reverse (132220121331), we get a palindrome (265341143562).

The spelling of 133121022231 in words is "one hundred thirty-three billion, one hundred twenty-one million, twenty-two thousand, two hundred thirty-one".