1267252201 has 4 divisors (see below), whose sum is σ = 1267974400. Its totient is φ = 1266530004.

The previous prime is 1267252171. The next prime is 1267252219. The reversal of 1267252201 is 1022527621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1022527621 = 113 ⋅9048917.

It is a cyclic number.

It is not a de Polignac number, because 1267252201 - 2⁵ = 1267252169 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 1267252201.

It is not an unprimeable number, because it can be changed into a prime (1267252241) 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, 358461 + ... + 361978.

It is an arithmetic number, because the mean of its divisors is an integer number (316993600).

Almost surely, 2^1267252201 is an apocalyptic number.

It is an amenable number.

1267252201 is a deficient number, since it is larger than the sum of its proper divisors (722199).

1267252201 is an equidigital number, since it uses as much as digits as its factorization.

1267252201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722198.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1267252201 is about 35598.4859369047. The cubic root of 1267252201 is about 1082.1505505495.

Adding to 1267252201 its reverse (1022527621), we get a palindrome (2289779822).

The spelling of 1267252201 in words is "one billion, two hundred sixty-seven million, two hundred fifty-two thousand, two hundred one".