122112201210111 has 40 divisors (see below), whose sum is σ = 208525693821984. Its totient is φ = 69761011302720.

The previous prime is 122112201210053. The next prime is 122112201210137. The reversal of 122112201210111 is 111012102211221.

It is a happy number.

122112201210111 is a `hidden beast` number, since 1 + 2 + 211 + 220 + 121 + 0 + 111 = 666.

It is not a de Polignac number, because 122112201210111 - 2⁶ = 122112201210047 is a prime.

It is a super-2 number, since 2×122112201210111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112201210511) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24558100 + ... + 29108841.

Almost surely, 2^{122112201210111} is an apocalyptic number.

122112201210111 is a deficient number, since it is larger than the sum of its proper divisors (86413492611873).

122112201210111 is an equidigital number, since it uses as much as digits as its factorization.

122112201210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53670973 (or 53670964 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122112201210111 its reverse (111012102211221), we get a palindrome (233124303421332).

The spelling of 122112201210111 in words is "one hundred twenty-two trillion, one hundred twelve billion, two hundred one million, two hundred ten thousand, one hundred eleven".