12021012021122 has 64 divisors (see below), whose sum is σ = 19848995502336. Its totient is φ = 5426544464640.

The previous prime is 12021012021121. The next prime is 12021012021181. The reversal of 12021012021122 is 22112021012021.

It is a self number, because there is not a number n which added to its sum of digits gives 12021012021122.

It is not an unprimeable number, because it can be changed into a prime (12021012021121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1185382172 + ... + 1185392312.

It is an arithmetic number, because the mean of its divisors is an integer number (310140554724).

Almost surely, 2^{12021012021122} is an apocalyptic number.

12021012021122 is a deficient number, since it is larger than the sum of its proper divisors (7827983481214).

12021012021122 is a wasteful number, since it uses less digits than its factorization.

12021012021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15675.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021012021122 its reverse (22112021012021), we get a palindrome (34133033033143).

It can be divided in two parts, 1202101 and 2021122, that added together give a palindrome (3223223).

The spelling of 12021012021122 in words is "twelve trillion, twenty-one billion, twelve million, twenty-one thousand, one hundred twenty-two".