122011010111 has 4 divisors (see below), whose sum is σ = 122032268424. Its totient is φ = 121989751800.

The previous prime is 122011010083. The next prime is 122011010129. The reversal of 122011010111 is 111010110221.

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 122011010111 - 2⁶ = 122011010047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122011010092 and 122011010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011010161) 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, 10620545 + ... + 10632026.

It is an arithmetic number, because the mean of its divisors is an integer number (30508067106).

Almost surely, 2^122011010111 is an apocalyptic number.

122011010111 is a deficient number, since it is larger than the sum of its proper divisors (21258313).

122011010111 is an equidigital number, since it uses as much as digits as its factorization.

122011010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21258312.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 122011010111 its reverse (111010110221), we get a palindrome (233021120332).

The spelling of 122011010111 in words is "one hundred twenty-two billion, eleven million, ten thousand, one hundred eleven".