222211020061 has 2 divisors, whose sum is σ = 222211020062. Its totient is φ = 222211020060.

The previous prime is 222211020049. The next prime is 222211020091. The reversal of 222211020061 is 160020112222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194653028025 + 27557992036 = 441195^2 + 166006^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211020061 - 2⁹ = 222211019549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222211020091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105510030 + 111105510031.

It is an arithmetic number, because the mean of its divisors is an integer number (111105510031).

Almost surely, 2^222211020061 is an apocalyptic number.

It is an amenable number.

222211020061 is a deficient number, since it is larger than the sum of its proper divisors (1).

222211020061 is an equidigital number, since it uses as much as digits as its factorization.

222211020061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222211020061 its reverse (160020112222), we get a palindrome (382231132283).

The spelling of 222211020061 in words is "two hundred twenty-two billion, two hundred eleven million, twenty thousand, sixty-one".