201222021001121 has 32 divisors (see below), whose sum is σ = 214255138944000. Its totient is φ = 188650008106560.

The previous prime is 201222021001097. The next prime is 201222021001181. The reversal of 201222021001121 is 121100120222102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201222021001121 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 201222021001121.

It is not an unprimeable number, because it can be changed into a prime (201222021001181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290240930 + ... + 290933396.

It is an arithmetic number, because the mean of its divisors is an integer number (6695473092000).

Almost surely, 2^{201222021001121} is an apocalyptic number.

It is an amenable number.

201222021001121 is a deficient number, since it is larger than the sum of its proper divisors (13033117942879).

201222021001121 is a wasteful number, since it uses less digits than its factorization.

201222021001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693909.

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

Adding to 201222021001121 its reverse (121100120222102), we get a palindrome (322322141223223).

The spelling of 201222021001121 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, one thousand, one hundred twenty-one".