12021010122 has 32 divisors (see below), whose sum is σ = 27367994880. Its totient is φ = 3484350320.

The previous prime is 12021010103. The next prime is 12021010163. The reversal of 12021010122 is 22101012021.

It is a junction number, because it is equal to n+sod(n) for n = 12021010098 and 12021010107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3957972 + ... + 3961007.

It is an arithmetic number, because the mean of its divisors is an integer number (855249840).

Almost surely, 2^12021010122 is an apocalyptic number.

12021010122 is an abundant number, since it is smaller than the sum of its proper divisors (15346984758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12021010122 is a wasteful number, since it uses less digits than its factorization.

12021010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7919018.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12021010122 its reverse (22101012021), we get a palindrome (34122022143).

The spelling of 12021010122 in words is "twelve billion, twenty-one million, ten thousand, one hundred twenty-two".