12213021011 has 2 divisors, whose sum is σ = 12213021012. Its totient is φ = 12213021010.

The previous prime is 12213020987. The next prime is 12213021059. The reversal of 12213021011 is 11012031221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12213021011 - 2⁶ = 12213020947 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213021311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106510505 + 6106510506.

It is an arithmetic number, because the mean of its divisors is an integer number (6106510506).

Almost surely, 2^12213021011 is an apocalyptic number.

12213021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213021011 is an equidigital number, since it uses as much as digits as its factorization.

12213021011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12213021011 its reverse (11012031221), we get a palindrome (23225052232).

The spelling of 12213021011 in words is "twelve billion, two hundred thirteen million, twenty-one thousand, eleven".