201100122220111 has 8 divisors (see below), whose sum is σ = 203267354211504. Its totient is φ = 198936343987200.

The previous prime is 201100122220043. The next prime is 201100122220117. The reversal of 201100122220111 is 111022221001102.

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 201100122220111 - 2¹⁵ = 201100122187343 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 (201100122220117) 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, 863322541 + ... + 863555446.

It is an arithmetic number, because the mean of its divisors is an integer number (25408419276438).

Almost surely, 2^{201100122220111} is an apocalyptic number.

201100122220111 is a deficient number, since it is larger than the sum of its proper divisors (2167231991393).

201100122220111 is a wasteful number, since it uses less digits than its factorization.

201100122220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726879241.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201100122220111 its reverse (111022221001102), we get a palindrome (312122343221213).

The spelling of 201100122220111 in words is "two hundred one trillion, one hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred eleven".