12021002100122 has 16 divisors (see below), whose sum is σ = 18112702255872. Its totient is φ = 5983435694880.

The previous prime is 12021002100119. The next prime is 12021002100169. The reversal of 12021002100122 is 22100120012021.

It is a super-4 number, since 4×12021002100122⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12021002100097 and 12021002100106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26727422 + ... + 27173462.

It is an arithmetic number, because the mean of its divisors is an integer number (1132043890992).

Almost surely, 2^{12021002100122} is an apocalyptic number.

12021002100122 is a deficient number, since it is larger than the sum of its proper divisors (6091700155750).

12021002100122 is a wasteful number, since it uses less digits than its factorization.

12021002100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506693.

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

Adding to 12021002100122 its reverse (22100120012021), we get a palindrome (34121122112143).

The spelling of 12021002100122 in words is "twelve trillion, twenty-one billion, two million, one hundred thousand, one hundred twenty-two".