1222123101 has 8 divisors (see below), whose sum is σ = 1700345280. Its totient is φ = 779324832.

The previous prime is 1222123069. The next prime is 1222123117. The reversal of 1222123101 is 1013212221.

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

It is not a de Polignac number, because 1222123101 - 2⁵ = 1222123069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222123141) 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, 8855896 + ... + 8856033.

It is an arithmetic number, because the mean of its divisors is an integer number (212543160).

Almost surely, 2^1222123101 is an apocalyptic number.

It is an amenable number.

1222123101 is a deficient number, since it is larger than the sum of its proper divisors (478222179).

1222123101 is a wasteful number, since it uses less digits than its factorization.

1222123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17711955.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1222123101 is about 34958.8772846040. The cubic root of 1222123101 is about 1069.1492060606.

Adding to 1222123101 its reverse (1013212221), we get a palindrome (2235335322).

The spelling of 1222123101 in words is "one billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred one".