12120022220201 has 12 divisors (see below), whose sum is σ = 14106682288260. Its totient is φ = 10382783473440.

The previous prime is 12120022220149. The next prime is 12120022220203. The reversal of 12120022220201 is 10202222002121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9959225118976 + 2160797101225 = 3155824^2 + 1469965^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12120022220201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120022220201.

It is not an unprimeable number, because it can be changed into a prime (12120022220203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69042410 + ... + 69217731.

It is an arithmetic number, because the mean of its divisors is an integer number (1175556857355).

Almost surely, 2^{12120022220201} is an apocalyptic number.

It is an amenable number.

12120022220201 is a deficient number, since it is larger than the sum of its proper divisors (1986660068059).

12120022220201 is a wasteful number, since it uses less digits than its factorization.

12120022220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138261944 (or 138261937 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12120022220201 its reverse (10202222002121), we get a palindrome (22322244222322).

The spelling of 12120022220201 in words is "twelve trillion, one hundred twenty billion, twenty-two million, two hundred twenty thousand, two hundred one".