133130222131 has 4 divisors (see below), whose sum is σ = 133133039200. Its totient is φ = 133127405064.

The previous prime is 133130222117. The next prime is 133130222161. The reversal of 133130222131 is 131222031331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133130222131 is a prime.

It is a super-2 number, since 2×133130222131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133130222101) 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, 1336416 + ... + 1432573.

It is an arithmetic number, because the mean of its divisors is an integer number (33283259800).

Almost surely, 2^133130222131 is an apocalyptic number.

133130222131 is a deficient number, since it is larger than the sum of its proper divisors (2817069).

133130222131 is an equidigital number, since it uses as much as digits as its factorization.

133130222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817068.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 133130222131 its reverse (131222031331), we get a palindrome (264352253462).

The spelling of 133130222131 in words is "one hundred thirty-three billion, one hundred thirty million, two hundred twenty-two thousand, one hundred thirty-one".