2120122120201 has 4 divisors (see below), whose sum is σ = 2120125322500. Its totient is φ = 2120118917904.

The previous prime is 2120122120187. The next prime is 2120122120219. The reversal of 2120122120201 is 1020212210212.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1472618655225 + 647503464976 = 1213515^2 + 804676^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120122120201 - 2⁷ = 2120122120073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120122120271) 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, 198426 + ... + 2068723.

It is an arithmetic number, because the mean of its divisors is an integer number (530031330625).

Almost surely, 2^{2120122120201} is an apocalyptic number.

It is an amenable number.

2120122120201 is a deficient number, since it is larger than the sum of its proper divisors (3202299).

2120122120201 is an equidigital number, since it uses as much as digits as its factorization.

2120122120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202298.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120122120201 its reverse (1020212210212), we get a palindrome (3140334330413).

The spelling of 2120122120201 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, one hundred twenty thousand, two hundred one".