22212011222201 has 2 divisors, whose sum is σ = 22212011222202. Its totient is φ = 22212011222200.

The previous prime is 22212011222131. The next prime is 22212011222221. The reversal of 22212011222201 is 10222211021222.

It is an a-pointer prime, because the next prime (22212011222221) can be obtained adding 22212011222201 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13790267925625 + 8421743296576 = 3713525^2 + 2902024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22212011222201 is a prime.

It is not a weakly prime, because it can be changed into another prime (22212011222221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106005611100 + 11106005611101.

It is an arithmetic number, because the mean of its divisors is an integer number (11106005611101).

Almost surely, 2^{22212011222201} is an apocalyptic number.

It is an amenable number.

22212011222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212011222201 is an equidigital number, since it uses as much as digits as its factorization.

22212011222201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22212011222201 its reverse (10222211021222), we get a palindrome (32434222243423).

The spelling of 22212011222201 in words is "twenty-two trillion, two hundred twelve billion, eleven million, two hundred twenty-two thousand, two hundred one".