122120102020211 has 4 divisors (see below), whose sum is σ = 122204264738424. Its totient is φ = 122035939302000.

The previous prime is 122120102020199. The next prime is 122120102020261. The reversal of 122120102020211 is 112020201021221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122120102020211 - 2³⁸ = 121845224113267 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 122120102020211.

It is not an unprimeable number, because it can be changed into a prime (122120102020261) 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, 42081356930 + ... + 42081359831.

It is an arithmetic number, because the mean of its divisors is an integer number (30551066184606).

Almost surely, 2^{122120102020211} is an apocalyptic number.

122120102020211 is a deficient number, since it is larger than the sum of its proper divisors (84162718213).

122120102020211 is an equidigital number, since it uses as much as digits as its factorization.

122120102020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84162718212.

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

Adding to 122120102020211 its reverse (112020201021221), we get a palindrome (234140303041432).

The spelling of 122120102020211 in words is "one hundred twenty-two trillion, one hundred twenty billion, one hundred two million, twenty thousand, two hundred eleven".