201120120122122 has 4 divisors (see below), whose sum is σ = 301680180183186. Its totient is φ = 100560060061060.

The previous prime is 201120120122099. The next prime is 201120120122179. The reversal of 201120120122122 is 221221021021102.

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

It can be written as a sum of positive squares in only one way, i.e., 135980063780401 + 65140056341721 = 11661049^2 + 8070939^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201120120122122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280030030529 + ... + 50280030030532.

Almost surely, 2^{201120120122122} is an apocalyptic number.

201120120122122 is a deficient number, since it is larger than the sum of its proper divisors (100560060061064).

201120120122122 is a wasteful number, since it uses less digits than its factorization.

201120120122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100560060061063.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201120120122122 its reverse (221221021021102), we get a palindrome (422341141143224).

The spelling of 201120120122122 in words is "two hundred one trillion, one hundred twenty billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-two".