122010111 has 8 divisors (see below), whose sum is σ = 180755760. Its totient is φ = 81340056.

The previous prime is 122010103. The next prime is 122010113. The reversal of 122010111 is 111010221.

It is a happy number.

It is not a de Polignac number, because 122010111 - 2³ = 122010103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 122010093 and 122010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2259420 + ... + 2259473.

It is an arithmetic number, because the mean of its divisors is an integer number (22594470).

Almost surely, 2^122010111 is an apocalyptic number.

122010111 is a deficient number, since it is larger than the sum of its proper divisors (58745649).

122010111 is an equidigital number, since it uses as much as digits as its factorization.

122010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518902 (or 4518896 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 122010111 is about 11045.8187111685. The cubic root of 122010111 is about 495.9812674485.

Adding to 122010111 its reverse (111010221), we get a palindrome (233020332).

The spelling of 122010111 in words is "one hundred twenty-two million, ten thousand, one hundred eleven".