1222530101 has 4 divisors (see below), whose sum is σ = 1316570892. Its totient is φ = 1128489312.

The previous prime is 1222530059. The next prime is 1222530161. The reversal of 1222530101 is 1010352221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1010352221 = 12251 ⋅82471.

It can be written as a sum of positive squares in 2 ways, for example, as 75082225 + 1147447876 = 8665^2 + 33874^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222530101 - 2⁶ = 1222530037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222530101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222530161) 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, 47020376 + ... + 47020401.

It is an arithmetic number, because the mean of its divisors is an integer number (329142723).

Almost surely, 2^1222530101 is an apocalyptic number.

It is an amenable number.

1222530101 is a deficient number, since it is larger than the sum of its proper divisors (94040791).

1222530101 is an equidigital number, since it uses as much as digits as its factorization.

1222530101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94040790.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1222530101 is about 34964.6979251931. The cubic root of 1222530101 is about 1069.2678780750.

Adding to 1222530101 its reverse (1010352221), we get a palindrome (2232882322).

The spelling of 1222530101 in words is "one billion, two hundred twenty-two million, five hundred thirty thousand, one hundred one".