122121020210201 has 4 divisors (see below), whose sum is σ = 122128233092304. Its totient is φ = 122113807328100.

The previous prime is 122121020210149. The next prime is 122121020210279. The reversal of 122121020210201 is 102012020121221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122121020210201 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 122121020210201.

It is not an unprimeable number, because it can be changed into a prime (122121020240201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3606415655 + ... + 3606449516.

It is an arithmetic number, because the mean of its divisors is an integer number (30532058273076).

Almost surely, 2^{122121020210201} is an apocalyptic number.

It is an amenable number.

122121020210201 is a deficient number, since it is larger than the sum of its proper divisors (7212882103).

122121020210201 is an equidigital number, since it uses as much as digits as its factorization.

122121020210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7212882102.

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

Adding to 122121020210201 its reverse (102012020121221), we get a palindrome (224133040331422).

The spelling of 122121020210201 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, twenty million, two hundred ten thousand, two hundred one".