201122110222021 has 8 divisors (see below), whose sum is σ = 201328299789120. Its totient is φ = 200915923887072.

The previous prime is 201122110222013. The next prime is 201122110222043. The reversal of 201122110222021 is 120222011221102.

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

It is a cyclic number.

It is not a de Polignac number, because 201122110222021 - 2³ = 201122110222013 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 201122110222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122110822021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135475066 + ... + 136951588.

It is an arithmetic number, because the mean of its divisors is an integer number (25166037473640).

Almost surely, 2^{201122110222021} is an apocalyptic number.

It is an amenable number.

201122110222021 is a deficient number, since it is larger than the sum of its proper divisors (206189567099).

201122110222021 is a wasteful number, since it uses less digits than its factorization.

201122110222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616075.

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

Adding to 201122110222021 its reverse (120222011221102), we get a palindrome (321344121443123).

The spelling of 201122110222021 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred ten million, two hundred twenty-two thousand, twenty-one".