201222121101101 has 4 divisors (see below), whose sum is σ = 201386652681312. Its totient is φ = 201057589520892.

The previous prime is 201222121101073. The next prime is 201222121101107. The reversal of 201222121101101 is 101101121222102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201222121101101 - 2¹⁴ = 201222121084717 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 201222121101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222121101107) 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 3 ways as a sum of consecutive naturals, for example, 82265788271 + ... + 82265790716.

It is an arithmetic number, because the mean of its divisors is an integer number (50346663170328).

Almost surely, 2^{201222121101101} is an apocalyptic number.

It is an amenable number.

201222121101101 is a deficient number, since it is larger than the sum of its proper divisors (164531580211).

201222121101101 is a wasteful number, since it uses less digits than its factorization.

201222121101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164531580210.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201222121101101 its reverse (101101121222102), we get a palindrome (302323242323203).

The spelling of 201222121101101 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred one".