122130001111 has 4 divisors (see below), whose sum is σ = 122812291800. Its totient is φ = 121447710424.

The previous prime is 122130001109. The next prime is 122130001129. The reversal of 122130001111 is 111100031221.

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 122130001111 - 2¹ = 122130001109 is a prime.

It is a super-2 number, since 2×122130001111² (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 = 122130001091 and 122130001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122130001141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341145076 + ... + 341145433.

It is an arithmetic number, because the mean of its divisors is an integer number (30703072950).

Almost surely, 2^122130001111 is an apocalyptic number.

122130001111 is a deficient number, since it is larger than the sum of its proper divisors (682290689).

122130001111 is an equidigital number, since it uses as much as digits as its factorization.

122130001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682290688.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 122130001111 its reverse (111100031221), we get a palindrome (233230032332).

The spelling of 122130001111 in words is "one hundred twenty-two billion, one hundred thirty million, one thousand, one hundred eleven".