122211001212211 has 4 divisors (see below), whose sum is σ = 122322813657232. Its totient is φ = 122099188767192.

The previous prime is 122211001212193. The next prime is 122211001212227. The reversal of 122211001212211 is 112212100112221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122211001212211 - 2²⁷ = 122210866994483 is a prime.

It is a super-2 number, since 2×122211001212211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122211001212281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55906220871 + ... + 55906223056.

It is an arithmetic number, because the mean of its divisors is an integer number (30580703414308).

Almost surely, 2^{122211001212211} is an apocalyptic number.

122211001212211 is a deficient number, since it is larger than the sum of its proper divisors (111812445021).

122211001212211 is a wasteful number, since it uses less digits than its factorization.

122211001212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111812445020.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122211001212211 its reverse (112212100112221), we get a palindrome (234423101324432).

The spelling of 122211001212211 in words is "one hundred twenty-two trillion, two hundred eleven billion, one million, two hundred twelve thousand, two hundred eleven".