221011202200122 has 128 divisors (see below), whose sum is σ = 496533768192000. Its totient is φ = 72863285227200.

The previous prime is 221011202200051. The next prime is 221011202200147. The reversal of 221011202200122 is 221002202110122.

It is a happy number.

221011202200122 is a `hidden beast` number, since 2 + 210 + 112 + 0 + 220 + 0 + 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 = 221011202200095 and 221011202200104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8021880247 + ... + 8021907797.

It is an arithmetic number, because the mean of its divisors is an integer number (3879170064000).

Almost surely, 2^{221011202200122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221011202200122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248266884096000).

221011202200122 is an abundant number, since it is smaller than the sum of its proper divisors (275522565991878).

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

221011202200122 is a wasteful number, since it uses less digits than its factorization.

221011202200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30073 (or 30067 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221011202200122 its reverse (221002202110122), we get a palindrome (442013404310244).

The spelling of 221011202200122 in words is "two hundred twenty-one trillion, eleven billion, two hundred two million, two hundred thousand, one hundred twenty-two".