122100202111 has 4 divisors (see below), whose sum is σ = 122133125800. Its totient is φ = 122067278424.

The previous prime is 122100202043. The next prime is 122100202117. The reversal of 122100202111 is 111202001221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111202001221 = 44683 ⋅2488687.

It is a cyclic number.

It is not a de Polignac number, because 122100202111 - 2²⁹ = 121563331199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122100202091 and 122100202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100202117) 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, 16456281 + ... + 16463698.

It is an arithmetic number, because the mean of its divisors is an integer number (30533281450).

Almost surely, 2^122100202111 is an apocalyptic number.

122100202111 is a deficient number, since it is larger than the sum of its proper divisors (32923689).

122100202111 is an equidigital number, since it uses as much as digits as its factorization.

122100202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32923688.

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

Adding to 122100202111 its reverse (111202001221), we get a palindrome (233302203332).

The spelling of 122100202111 in words is "one hundred twenty-two billion, one hundred million, two hundred two thousand, one hundred eleven".