201000122121122 has 8 divisors (see below), whose sum is σ = 303062360297196. Its totient is φ = 99979335355392.

The previous prime is 201000122121091. The next prime is 201000122121163. The reversal of 201000122121122 is 221121221000102.

It can be written as a sum of positive squares in 2 ways, for example, as 161330921995321 + 39669200125801 = 12701611^2 + 6298349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201000122121122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260362852103 + ... + 260362852874.

Almost surely, 2^{201000122121122} is an apocalyptic number.

201000122121122 is a deficient number, since it is larger than the sum of its proper divisors (102062238176074).

201000122121122 is a wasteful number, since it uses less digits than its factorization.

201000122121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520725705172.

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

Adding to 201000122121122 its reverse (221121221000102), we get a palindrome (422121343121224).

The spelling of 201000122121122 in words is "two hundred one trillion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".