1222352501 has 4 divisors (see below), whose sum is σ = 1243070400. Its totient is φ = 1201634604.

The previous prime is 1222352477. The next prime is 1222352531. The reversal of 1222352501 is 1052532221.

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: 1052532221 = 13 ⋅80964017.

It is a cyclic number.

It is not a de Polignac number, because 1222352501 - 2¹⁰ = 1222351477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222352531) 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, 10358861 + ... + 10358978.

It is an arithmetic number, because the mean of its divisors is an integer number (310767600).

Almost surely, 2^1222352501 is an apocalyptic number.

It is an amenable number.

1222352501 is a deficient number, since it is larger than the sum of its proper divisors (20717899).

1222352501 is an equidigital number, since it uses as much as digits as its factorization.

1222352501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20717898.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1222352501 is about 34962.1581284680. The cubic root of 1222352501 is about 1069.2160971628.

Adding to 1222352501 its reverse (1052532221), we get a palindrome (2274884722).

The spelling of 1222352501 in words is "one billion, two hundred twenty-two million, three hundred fifty-two thousand, five hundred one".