1244222201 has 16 divisors (see below), whose sum is σ = 1326480960. Its totient is φ = 1163704320.

The previous prime is 1244222183. The next prime is 1244222209. The reversal of 1244222201 is 1022224421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244222201 is a prime.

It is a super-2 number, since 2×1244222201² = 3096177770922568802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1244222209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273025 + ... + 1274001.

It is an arithmetic number, because the mean of its divisors is an integer number (82905060).

Almost surely, 2^1244222201 is an apocalyptic number.

It is an amenable number.

1244222201 is a deficient number, since it is larger than the sum of its proper divisors (82258759).

1244222201 is an equidigital number, since it uses as much as digits as its factorization.

1244222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1244222201 is about 35273.5340021382. The cubic root of 1244222201 is about 1075.5550624769. Note that the first 3 decimals are identical.

Adding to 1244222201 its reverse (1022224421), we get a palindrome (2266446622).

It can be divided in two parts, 12442 and 22201, that added together give a palindrome (34643).

The spelling of 1244222201 in words is "one billion, two hundred forty-four million, two hundred twenty-two thousand, two hundred one".