122100212011 has 4 divisors (see below), whose sum is σ = 122111336152. Its totient is φ = 122089087872.

The previous prime is 122100211999. The next prime is 122100212023. The reversal of 122100212011 is 110212001221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (122100211999) and next prime (122100212023).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122100212011 is a prime.

It is a super-2 number, since 2×122100212011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122100211982 and 122100212000.

It is not an unprimeable number, because it can be changed into a prime (122100212041) 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, 5545590 + ... + 5567563.

It is an arithmetic number, because the mean of its divisors is an integer number (30527834038).

Almost surely, 2^122100212011 is an apocalyptic number.

122100212011 is a deficient number, since it is larger than the sum of its proper divisors (11124141).

122100212011 is a wasteful number, since it uses less digits than its factorization.

122100212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11124140.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122100212011 its reverse (110212001221), we get a palindrome (232312213232).

The spelling of 122100212011 in words is "one hundred twenty-two billion, one hundred million, two hundred twelve thousand, eleven".