12001020021122 has 16 divisors (see below), whose sum is σ = 19642854424032. Its totient is φ = 5453669749920.

The previous prime is 12001020021061. The next prime is 12001020021169. The reversal of 12001020021122 is 22112002010021.

It is a super-2 number, since 2×12001020021122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001020021097 and 12001020021106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66875888 + ... + 67055099.

It is an arithmetic number, because the mean of its divisors is an integer number (1227678401502).

Almost surely, 2^{12001020021122} is an apocalyptic number.

12001020021122 is a deficient number, since it is larger than the sum of its proper divisors (7641834402910).

12001020021122 is a wasteful number, since it uses less digits than its factorization.

12001020021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133935073.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12001020021122 its reverse (22112002010021), we get a palindrome (34113022031143).

The spelling of 12001020021122 in words is "twelve trillion, one billion, twenty million, twenty-one thousand, one hundred twenty-two".