201121222022111 has 8 divisors (see below), whose sum is σ = 201694216264800. Its totient is φ = 200548561406688.

The previous prime is 201121222022059. The next prime is 201121222022153. The reversal of 201121222022111 is 111220222121102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201121222022111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121222025111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82199411 + ... + 84610788.

It is an arithmetic number, because the mean of its divisors is an integer number (25211777033100).

Almost surely, 2^{201121222022111} is an apocalyptic number.

201121222022111 is a deficient number, since it is larger than the sum of its proper divisors (572994242689).

201121222022111 is a wasteful number, since it uses less digits than its factorization.

201121222022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166813633.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201121222022111 its reverse (111220222121102), we get a palindrome (312341444143213).

The spelling of 201121222022111 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-two million, twenty-two thousand, one hundred eleven".