122211201111 has 8 divisors (see below), whose sum is σ = 172533460464. Its totient is φ = 76681537920.

The previous prime is 122211201097. The next prime is 122211201113. The reversal of 122211201111 is 111102112221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122211201111 - 2⁷ = 122211200983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211201113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198148980 + ... + 1198149081.

It is an arithmetic number, because the mean of its divisors is an integer number (21566682558).

Almost surely, 2^122211201111 is an apocalyptic number.

122211201111 is a deficient number, since it is larger than the sum of its proper divisors (50322259353).

122211201111 is a wasteful number, since it uses less digits than its factorization.

122211201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396298081.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122211201111 its reverse (111102112221), we get a palindrome (233313313332).

The spelling of 122211201111 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred one thousand, one hundred eleven".