122101121011 has 4 divisors (see below), whose sum is σ = 129283539912. Its totient is φ = 114918702112.

The previous prime is 122101120963. The next prime is 122101121017. The reversal of 122101121011 is 110121101221.

It is a happy number.

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 122101121011 - 2²³ = 122092732403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122101120982 and 122101121000.

It is not an unprimeable number, because it can be changed into a prime (122101121017) 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, 3591209425 + ... + 3591209458.

It is an arithmetic number, because the mean of its divisors is an integer number (32320884978).

Almost surely, 2^122101121011 is an apocalyptic number.

122101121011 is a deficient number, since it is larger than the sum of its proper divisors (7182418901).

122101121011 is an equidigital number, since it uses as much as digits as its factorization.

122101121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182418900.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122101121011 its reverse (110121101221), we get a palindrome (232222222232).

The spelling of 122101121011 in words is "one hundred twenty-two billion, one hundred one million, one hundred twenty-one thousand, eleven".