12001200121022 has 64 divisors (see below), whose sum is σ = 21345950545920. Its totient is φ = 4953891038976.

The previous prime is 12001200121021. The next prime is 12001200121061. The reversal of 12001200121022 is 22012100210021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12001200120988 and 12001200121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001200121021) 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, 44524754 + ... + 44793482.

It is an arithmetic number, because the mean of its divisors is an integer number (333530477280).

Almost surely, 2^{12001200121022} is an apocalyptic number.

12001200121022 is a deficient number, since it is larger than the sum of its proper divisors (9344750424898).

12001200121022 is a wasteful number, since it uses less digits than its factorization.

12001200121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269865.

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

Adding to 12001200121022 its reverse (22012100210021), we get a palindrome (34013300331043).

The spelling of 12001200121022 in words is "twelve trillion, one billion, two hundred million, one hundred twenty-one thousand, twenty-two".