22200110012221 has 2 divisors, whose sum is σ = 22200110012222. Its totient is φ = 22200110012220.

The previous prime is 22200110012191. The next prime is 22200110012279. The reversal of 22200110012221 is 12221001100222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22130908922500 + 69201089721 = 4704350^2 + 263061^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200110012221 - 2¹³ = 22200110004029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22200110012195 and 22200110012204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22200110012921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100055006110 + 11100055006111.

It is an arithmetic number, because the mean of its divisors is an integer number (11100055006111).

Almost surely, 2^{22200110012221} is an apocalyptic number.

It is an amenable number.

22200110012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200110012221 is an equidigital number, since it uses as much as digits as its factorization.

22200110012221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22200110012221 its reverse (12221001100222), we get a palindrome (34421111112443).

The spelling of 22200110012221 in words is "twenty-two trillion, two hundred billion, one hundred ten million, twelve thousand, two hundred twenty-one".