1210222313 has 4 divisors (see below), whose sum is σ = 1221325380. Its totient is φ = 1199119248.

The previous prime is 1210222283. The next prime is 1210222319. The reversal of 1210222313 is 3132220121.

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 1092434704 + 117787609 = 33052^2 + 10853^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210222313 - 2¹⁶ = 1210156777 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1210222291 and 1210222300.

It is not an unprimeable number, because it can be changed into a prime (1210222319) 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, 5551370 + ... + 5551587.

It is an arithmetic number, because the mean of its divisors is an integer number (305331345).

Almost surely, 2^1210222313 is an apocalyptic number.

It is an amenable number.

1210222313 is a deficient number, since it is larger than the sum of its proper divisors (11103067).

1210222313 is a wasteful number, since it uses less digits than its factorization.

1210222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11103066.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1210222313 is about 34788.2496397850. The cubic root of 1210222313 is about 1065.6674937151.

Adding to 1210222313 its reverse (3132220121), we get a palindrome (4342442434).

The spelling of 1210222313 in words is "one billion, two hundred ten million, two hundred twenty-two thousand, three hundred thirteen".