1222100133 has 4 divisors (see below), whose sum is σ = 1629466848. Its totient is φ = 814733420.

The previous prime is 1222100071. The next prime is 1222100137. The reversal of 1222100133 is 3310012221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3310012221 = 3 ⋅1103337407.

It is a cyclic number.

It is not a de Polignac number, because 1222100133 - 2⁸ = 1222099877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222100137) 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, 203683353 + ... + 203683358.

It is an arithmetic number, because the mean of its divisors is an integer number (407366712).

Almost surely, 2^1222100133 is an apocalyptic number.

It is an amenable number.

1222100133 is a deficient number, since it is larger than the sum of its proper divisors (407366715).

1222100133 is an equidigital number, since it uses as much as digits as its factorization.

1222100133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407366714.

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

The square root of 1222100133 is about 34958.5487828085. The cubic root of 1222100133 is about 1069.1425083248.

Adding to 1222100133 its reverse (3310012221), we get a palindrome (4532112354).

The spelling of 1222100133 in words is "one billion, two hundred twenty-two million, one hundred thousand, one hundred thirty-three".