122211101220211 has 2 divisors, whose sum is σ = 122211101220212. Its totient is φ = 122211101220210.

The previous prime is 122211101220203. The next prime is 122211101220259. The reversal of 122211101220211 is 112022101112221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122211101220211 - 2³ = 122211101220203 is a prime.

It is a super-2 number, since 2×122211101220211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122211101220511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61105550610105 + 61105550610106.

It is an arithmetic number, because the mean of its divisors is an integer number (61105550610106).

Almost surely, 2^{122211101220211} is an apocalyptic number.

122211101220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

122211101220211 is an equidigital number, since it uses as much as digits as its factorization.

122211101220211 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 19.

Adding to 122211101220211 its reverse (112022101112221), we get a palindrome (234233202332432).

The spelling of 122211101220211 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred one million, two hundred twenty thousand, two hundred eleven".