12000021010122 has 16 divisors (see below), whose sum is σ = 24000401884032. Its totient is φ = 3999947026080.

The previous prime is 12000021010099. The next prime is 12000021010123. The reversal of 12000021010122 is 22101012000021.

It is a junction number, because it is equal to n+sod(n) for n = 12000021010098 and 12000021010107.

It is not an unprimeable number, because it can be changed into a prime (12000021010123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14559858 + ... + 15361949.

It is an arithmetic number, because the mean of its divisors is an integer number (1500025117752).

Almost surely, 2^{12000021010122} is an apocalyptic number.

12000021010122 is an abundant number, since it is smaller than the sum of its proper divisors (12000380873910).

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

12000021010122 is a wasteful number, since it uses less digits than its factorization.

12000021010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29988653.

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

Adding to 12000021010122 its reverse (22101012000021), we get a palindrome (34101033010143).

The spelling of 12000021010122 in words is "twelve trillion, twenty-one million, ten thousand, one hundred twenty-two".