21110012102233 has 2 divisors, whose sum is σ = 21110012102234. Its totient is φ = 21110012102232.

The previous prime is 21110012102219. The next prime is 21110012102251. The reversal of 21110012102233 is 33220121001112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12045980615824 + 9064031486409 = 3470732^2 + 3010653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110012102233 is a prime.

It is a super-2 number, since 2×21110012102233² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21110012102233.

It is not a weakly prime, because it can be changed into another prime (21110012102833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555006051116 + 10555006051117.

It is an arithmetic number, because the mean of its divisors is an integer number (10555006051117).

Almost surely, 2^{21110012102233} is an apocalyptic number.

It is an amenable number.

21110012102233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110012102233 is an equidigital number, since it uses as much as digits as its factorization.

21110012102233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21110012102233 its reverse (33220121001112), we get a palindrome (54330133103345).

The spelling of 21110012102233 in words is "twenty-one trillion, one hundred ten billion, twelve million, one hundred two thousand, two hundred thirty-three".