201111200221122 has 96 divisors (see below), whose sum is σ = 459008161672320. Its totient is φ = 63462634583040.

The previous prime is 201111200221121. The next prime is 201111200221133. The reversal of 201111200221122 is 221122002111102.

201111200221122 is a `hidden beast` number, since 201 + 1 + 1 + 120 + 0 + 221 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201111200221095 and 201111200221104.

It is not an unprimeable number, because it can be changed into a prime (201111200221121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5184461547 + ... + 5184500337.

It is an arithmetic number, because the mean of its divisors is an integer number (4781335017420).

Almost surely, 2^{201111200221122} is an apocalyptic number.

201111200221122 is an abundant number, since it is smaller than the sum of its proper divisors (257896961451198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201111200221122 is a wasteful number, since it uses less digits than its factorization.

201111200221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49448 (or 49445 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201111200221122 its reverse (221122002111102), we get a palindrome (422233202332224).

The spelling of 201111200221122 in words is "two hundred one trillion, one hundred eleven billion, two hundred million, two hundred twenty-one thousand, one hundred twenty-two".