221011022122 has 16 divisors (see below), whose sum is σ = 361944000000. Its totient is φ = 100379111040.

The previous prime is 221011022119. The next prime is 221011022149. The reversal of 221011022122 is 221220110122.

It is a happy number.

It is a super-4 number, since 4×221011022122⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 221011022096 and 221011022105.

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 7 ways as a sum of consecutive naturals, for example, 3994122 + ... + 4049077.

It is an arithmetic number, because the mean of its divisors is an integer number (22621500000).

Almost surely, 2^221011022122 is an apocalyptic number.

221011022122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221011022122 is a deficient number, since it is larger than the sum of its proper divisors (140932977878).

221011022122 is a wasteful number, since it uses less digits than its factorization.

221011022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044461.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221011022122 its reverse (221220110122), we get a palindrome (442231132244).

The spelling of 221011022122 in words is "two hundred twenty-one billion, eleven million, twenty-two thousand, one hundred twenty-two".