122201112111 has 8 divisors (see below), whose sum is σ = 175468263600. Its totient is φ = 75200684352.

The previous prime is 122201112071. The next prime is 122201112119. The reversal of 122201112111 is 111211102221.

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 122201112111 - 2¹³ = 122201103919 is a prime.

It is a super-2 number, since 2×122201112111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122201112119) 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, 1566680886 + ... + 1566680963.

It is an arithmetic number, because the mean of its divisors is an integer number (21933532950).

Almost surely, 2^122201112111 is an apocalyptic number.

122201112111 is a deficient number, since it is larger than the sum of its proper divisors (53267151489).

122201112111 is a wasteful number, since it uses less digits than its factorization.

122201112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133361865.

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

Adding to 122201112111 its reverse (111211102221), we get a palindrome (233412214332).

The spelling of 122201112111 in words is "one hundred twenty-two billion, two hundred one million, one hundred twelve thousand, one hundred eleven".