22021210012201 has 2 divisors, whose sum is σ = 22021210012202. Its totient is φ = 22021210012200.

The previous prime is 22021210012189. The next prime is 22021210012231. The reversal of 22021210012201 is 10221001212022.

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., 13997026387600 + 8024183624601 = 3741260^2 + 2832699^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021210012201 - 2¹¹ = 22021210010153 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021210012231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010605006100 + 11010605006101.

It is an arithmetic number, because the mean of its divisors is an integer number (11010605006101).

Almost surely, 2^{22021210012201} is an apocalyptic number.

It is an amenable number.

22021210012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021210012201 is an equidigital number, since it uses as much as digits as its factorization.

22021210012201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 22021210012201 its reverse (10221001212022), we get a palindrome (32242211224223).

The spelling of 22021210012201 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, twelve thousand, two hundred one".