2222011127221 has 2 divisors, whose sum is σ = 2222011127222. Its totient is φ = 2222011127220.

The previous prime is 2222011127213. The next prime is 2222011127233. The reversal of 2222011127221 is 1227211102222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1186421992900 + 1035589134321 = 1089230^2 + 1017639^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222011127221 - 2³ = 2222011127213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222011127291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111005563610 + 1111005563611.

It is an arithmetic number, because the mean of its divisors is an integer number (1111005563611).

Almost surely, 2^{2222011127221} is an apocalyptic number.

It is an amenable number.

2222011127221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222011127221 is an equidigital number, since it uses as much as digits as its factorization.

2222011127221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 2222011127221 its reverse (1227211102222), we get a palindrome (3449222229443).

The spelling of 2222011127221 in words is "two trillion, two hundred twenty-two billion, eleven million, one hundred twenty-seven thousand, two hundred twenty-one".