133122011 has 4 divisors (see below), whose sum is σ = 145224024. Its totient is φ = 121020000.

The previous prime is 133122007. The next prime is 133122049. The reversal of 133122011 is 110221331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110221331 = 11 ⋅10020121.

It is a cyclic number.

It is not a de Polignac number, because 133122011 - 2² = 133122007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133122071) 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, 6050990 + ... + 6051011.

It is an arithmetic number, because the mean of its divisors is an integer number (36306006).

Almost surely, 2^133122011 is an apocalyptic number.

133122011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133122011 is a deficient number, since it is larger than the sum of its proper divisors (12102013).

133122011 is a wasteful number, since it uses less digits than its factorization.

133122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12102012.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 133122011 is about 11537.8512297568. The cubic root of 133122011 is about 510.6029150529.

Adding to 133122011 its reverse (110221331), we get a palindrome (243343342).

The spelling of 133122011 in words is "one hundred thirty-three million, one hundred twenty-two thousand, eleven".