122133021 has 4 divisors (see below), whose sum is σ = 162844032. Its totient is φ = 81422012.

The previous prime is 122133019. The next prime is 122133047. The reversal of 122133021 is 120331221.

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 122133021 - 2¹ = 122133019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133071) 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, 20355501 + ... + 20355506.

It is an arithmetic number, because the mean of its divisors is an integer number (40711008).

Almost surely, 2^122133021 is an apocalyptic number.

It is an amenable number.

122133021 is a deficient number, since it is larger than the sum of its proper divisors (40711011).

122133021 is an equidigital number, since it uses as much as digits as its factorization.

122133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40711010.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 122133021 is about 11051.3809544328. The cubic root of 122133021 is about 496.1477580186.

Adding to 122133021 its reverse (120331221), we get a palindrome (242464242).

The spelling of 122133021 in words is "one hundred twenty-two million, one hundred thirty-three thousand, twenty-one".