1222250135 has 8 divisors (see below), whose sum is σ = 1471054416. Its totient is φ = 974897280.

The previous prime is 1222250131. The next prime is 1222250143. The reversal of 1222250135 is 5310522221.

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

It is not a de Polignac number, because 1222250135 - 2² = 1222250131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222250135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222250131) 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, 361001 + ... + 364370.

It is an arithmetic number, because the mean of its divisors is an integer number (183881802).

Almost surely, 2^1222250135 is an apocalyptic number.

1222250135 is a deficient number, since it is larger than the sum of its proper divisors (248804281).

1222250135 is an equidigital number, since it uses as much as digits as its factorization.

1222250135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725713.

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

The square root of 1222250135 is about 34960.6941435664. The cubic root of 1222250135 is about 1069.1862491360.

Adding to 1222250135 its reverse (5310522221), we get a palindrome (6532772356).

The spelling of 1222250135 in words is "one billion, two hundred twenty-two million, two hundred fifty thousand, one hundred thirty-five".