122111012 has 12 divisors (see below), whose sum is σ = 214930716. Its totient is φ = 60702240.

The previous prime is 122110987. The next prime is 122111021. The reversal of 122111012 is 210111221.

It can be written as a sum of positive squares in 2 ways, for example, as 116079076 + 6031936 = 10774^2 + 2456^2 .

It is a super-2 number, since 2×122111012² = 29822198503328288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122110984 and 122111002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87539 + ... + 88922.

It is an arithmetic number, because the mean of its divisors is an integer number (17910893).

Almost surely, 2^122111012 is an apocalyptic number.

It is an amenable number.

122111012 is a deficient number, since it is larger than the sum of its proper divisors (92819704).

122111012 is a wasteful number, since it uses less digits than its factorization.

122111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176638 (or 176636 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 122111012 is about 11050.3851516587. The cubic root of 122111012 is about 496.1179534336.

Adding to 122111012 its reverse (210111221), we get a palindrome (332222233).

The spelling of 122111012 in words is "one hundred twenty-two million, one hundred eleven thousand, twelve".