21222230112011 has 2 divisors, whose sum is σ = 21222230112012. Its totient is φ = 21222230112010.

The previous prime is 21222230111977. The next prime is 21222230112023. The reversal of 21222230112011 is 11021103222212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21222230112011 - 2²² = 21222225917707 is a prime.

It is not a weakly prime, because it can be changed into another prime (21222230112091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611115056005 + 10611115056006.

It is an arithmetic number, because the mean of its divisors is an integer number (10611115056006).

Almost surely, 2^{21222230112011} is an apocalyptic number.

21222230112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222230112011 is an equidigital number, since it uses as much as digits as its factorization.

21222230112011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21222230112011 its reverse (11021103222212), we get a palindrome (32243333334223).

The spelling of 21222230112011 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thirty million, one hundred twelve thousand, eleven".