2201212331 has 2 divisors, whose sum is σ = 2201212332. Its totient is φ = 2201212330.

The previous prime is 2201212327. The next prime is 2201212369. The reversal of 2201212331 is 1332121022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201212331 - 2² = 2201212327 is a prime.

It is a super-2 number, since 2×2201212331² = 9690671452292907122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2201212231) 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 as a sum of consecutive naturals, namely, 1100606165 + 1100606166.

It is an arithmetic number, because the mean of its divisors is an integer number (1100606166).

Almost surely, 2^2201212331 is an apocalyptic number.

2201212331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201212331 is an equidigital number, since it uses as much as digits as its factorization.

2201212331 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2201212331 is about 46917.0793102043. The cubic root of 2201212331 is about 1300.8303040924.

Adding to 2201212331 its reverse (1332121022), we get a palindrome (3533333353).

It can be divided in two parts, 22012 and 12331, that added together give a palindrome (34343).

The spelling of 2201212331 in words is "two billion, two hundred one million, two hundred twelve thousand, three hundred thirty-one".