1222095137 has 4 divisors (see below), whose sum is σ = 1222575636. Its totient is φ = 1221614640.

The previous prime is 1222095101. The next prime is 1222095151. The reversal of 1222095137 is 7315902221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 812478016 + 409617121 = 28504^2 + 20239^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222095137 - 2⁶ = 1222095073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222095157) 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, 236414 + ... + 241527.

It is an arithmetic number, because the mean of its divisors is an integer number (305643909).

Almost surely, 2^1222095137 is an apocalyptic number.

It is an amenable number.

1222095137 is a deficient number, since it is larger than the sum of its proper divisors (480499).

1222095137 is an equidigital number, since it uses as much as digits as its factorization.

1222095137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480498.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1222095137 is about 34958.4773266800. The cubic root of 1222095137 is about 1069.1410514220.

Adding to 1222095137 its reverse (7315902221), we get a palindrome (8537997358).

The spelling of 1222095137 in words is "one billion, two hundred twenty-two million, ninety-five thousand, one hundred thirty-seven".