20110222021122 has 48 divisors (see below), whose sum is σ = 43647022043352. Its totient is φ = 6691889433600.

The previous prime is 20110222021103. The next prime is 20110222021229. The reversal of 20110222021122 is 22112022201102.

It is a happy number.

20110222021122 is a `hidden beast` number, since 201 + 10 + 2 + 220 + 211 + 22 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19406500688961 + 703721332161 = 4405281^2 + 838881^2 .

It is a super-2 number, since 2×20110222021122² (a number of 27 digits) contains 22 as substring.

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 = 20110222021095 and 20110222021104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261075558 + ... + 261152574.

Almost surely, 2^{20110222021122} is an apocalyptic number.

20110222021122 is an abundant number, since it is smaller than the sum of its proper divisors (23536800022230).

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

20110222021122 is a wasteful number, since it uses less digits than its factorization.

20110222021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101763 (or 101760 counting only the distinct ones).

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

Adding to 20110222021122 its reverse (22112022201102), we get a palindrome (42222244222224).

The spelling of 20110222021122 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-two".