122000010111 has 64 divisors (see below), whose sum is σ = 220966824960. Its totient is φ = 64936857600.

The previous prime is 122000010103. The next prime is 122000010131. The reversal of 122000010111 is 111010000221.

It is a happy number.

It is not a de Polignac number, because 122000010111 - 2³ = 122000010103 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 = 122000010093 and 122000010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000010101) 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 63 ways as a sum of consecutive naturals, for example, 115936 + ... + 507386.

It is an arithmetic number, because the mean of its divisors is an integer number (3452606640).

Almost surely, 2^122000010111 is an apocalyptic number.

122000010111 is a deficient number, since it is larger than the sum of its proper divisors (98966814849).

122000010111 is a wasteful number, since it uses less digits than its factorization.

122000010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391581 (or 391575 counting only the distinct ones).

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

Adding to 122000010111 its reverse (111010000221), we get a palindrome (233010010332).

The spelling of 122000010111 in words is "one hundred twenty-two billion, ten thousand, one hundred eleven".