22012130000221 has 2 divisors, whose sum is σ = 22012130000222. Its totient is φ = 22012130000220.

The previous prime is 22012130000153. The next prime is 22012130000251. The reversal of 22012130000221 is 12200003121022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17220956234596 + 4791173765625 = 4149814^2 + 2188875^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012130000221 - 2⁷ = 22012130000093 is a prime.

It is a super-2 number, since 2×22012130000221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22012130000195 and 22012130000204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012130000251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006065000110 + 11006065000111.

It is an arithmetic number, because the mean of its divisors is an integer number (11006065000111).

Almost surely, 2^{22012130000221} is an apocalyptic number.

It is an amenable number.

22012130000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012130000221 is an equidigital number, since it uses as much as digits as its factorization.

22012130000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22012130000221 its reverse (12200003121022), we get a palindrome (34212133121243).

The spelling of 22012130000221 in words is "twenty-two trillion, twelve billion, one hundred thirty million, two hundred twenty-one", and thus it is an aban number.