1252322011 has 4 divisors (see below), whose sum is σ = 1267410312. Its totient is φ = 1237233712.

The previous prime is 1252321997. The next prime is 1252322033. The reversal of 1252322011 is 1102232521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102232521 = 13 ⋅84787117.

It is a cyclic number.

It is not a de Polignac number, because 1252322011 - 2¹⁵ = 1252289243 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 1252322011.

It is not an unprimeable number, because it can be changed into a prime (1252322041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7544026 + ... + 7544191.

It is an arithmetic number, because the mean of its divisors is an integer number (316852578).

Almost surely, 2^1252322011 is an apocalyptic number.

1252322011 is a deficient number, since it is larger than the sum of its proper divisors (15088301).

1252322011 is an equidigital number, since it uses as much as digits as its factorization.

1252322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15088300.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1252322011 is about 35388.1620178274. The cubic root of 1252322011 is about 1077.8839485632.

Adding to 1252322011 its reverse (1102232521), we get a palindrome (2354554532).

The spelling of 1252322011 in words is "one billion, two hundred fifty-two million, three hundred twenty-two thousand, eleven".