122122011111011 has 4 divisors (see below), whose sum is σ = 124426199999952. Its totient is φ = 119817822222072.

The previous prime is 122122011110993. The next prime is 122122011111013. The reversal of 122122011111011 is 110111110221221.

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 122122011111011 - 2⁶ = 122122011110947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122122011111013) 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, 1152094444391 + ... + 1152094444496.

It is an arithmetic number, because the mean of its divisors is an integer number (31106549999988).

Almost surely, 2^{122122011111011} is an apocalyptic number.

122122011111011 is a deficient number, since it is larger than the sum of its proper divisors (2304188888941).

122122011111011 is an equidigital number, since it uses as much as digits as its factorization.

122122011111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304188888940.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 122122011111011 its reverse (110111110221221), we get a palindrome (232233121332232).

The spelling of 122122011111011 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, eleven million, one hundred eleven thousand, eleven".