12210211331 has 2 divisors, whose sum is σ = 12210211332. Its totient is φ = 12210211330.

The previous prime is 12210211327. The next prime is 12210211369. The reversal of 12210211331 is 13311201221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12210211331 - 2² = 12210211327 is a prime.

It is a super-2 number, since 2×12210211331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12210211231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105105665 + 6105105666.

It is an arithmetic number, because the mean of its divisors is an integer number (6105105666).

Almost surely, 2^12210211331 is an apocalyptic number.

12210211331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210211331 is an equidigital number, since it uses as much as digits as its factorization.

12210211331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12210211331 its reverse (13311201221), we get a palindrome (25521412552).

The spelling of 12210211331 in words is "twelve billion, two hundred ten million, two hundred eleven thousand, three hundred thirty-one".