1252222213 has 8 divisors (see below), whose sum is σ = 1388455776. Its totient is φ = 1119721200.

The previous prime is 1252222207. The next prime is 1252222219. The reversal of 1252222213 is 3122222521.

It is an interprime number because it is at equal distance from previous prime (1252222207) and next prime (1252222219).

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

It is a cyclic number.

It is not a de Polignac number, because 1252222213 - 2⁹ = 1252221701 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 (1252222219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932431 + ... + 933772.

It is an arithmetic number, because the mean of its divisors is an integer number (173556972).

Almost surely, 2^1252222213 is an apocalyptic number.

It is an amenable number.

1252222213 is a deficient number, since it is larger than the sum of its proper divisors (136233563).

1252222213 is a wasteful number, since it uses less digits than its factorization.

1252222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866275.

The product of its digits is 960, while the sum is 22.

The square root of 1252222213 is about 35386.7519419344. The cubic root of 1252222213 is about 1077.8553154803.

Adding to 1252222213 its reverse (3122222521), we get a palindrome (4374444734).

It can be divided in two parts, 12 and 52222213, that added together give a palindrome (52222225).

The spelling of 1252222213 in words is "one billion, two hundred fifty-two million, two hundred twenty-two thousand, two hundred thirteen".