1222102523 has 4 divisors (see below), whose sum is σ = 1222736688. Its totient is φ = 1221468360.

The previous prime is 1222102513. The next prime is 1222102547. The reversal of 1222102523 is 3252012221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222102523 - 2²⁴ = 1205325307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222102495 and 1222102504.

It is not an unprimeable number, because it can be changed into a prime (1222102513) 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, 314183 + ... + 318048.

It is an arithmetic number, because the mean of its divisors is an integer number (305684172).

Almost surely, 2^1222102523 is an apocalyptic number.

1222102523 is a deficient number, since it is larger than the sum of its proper divisors (634165).

1222102523 is an equidigital number, since it uses as much as digits as its factorization.

1222102523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634164.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1222102523 is about 34958.5829661329. The cubic root of 1222102523 is about 1069.1432052805.

Adding to 1222102523 its reverse (3252012221), we get a palindrome (4474114744).

The spelling of 1222102523 in words is "one billion, two hundred twenty-two million, one hundred two thousand, five hundred twenty-three".