221120222021122 has 16 divisors (see below), whose sum is σ = 335459074327992. Its totient is φ = 109303764419200.

The previous prime is 221120222021093. The next prime is 221120222021123.

221120222021122 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 221033962918521 + 86259102601 = 14867211^2 + 293699^2 .

It is a super-2 number, since 2×221120222021122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221120222021093 and 221120222021102.

It is not an unprimeable number, because it can be changed into a prime (221120222021123) by changing a digit.

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, 808323043 + ... + 808596550.

Almost surely, 2^{221120222021122} is an apocalyptic number.

221120222021122 is a deficient number, since it is larger than the sum of its proper divisors (114338852306870).

221120222021122 is a wasteful number, since it uses less digits than its factorization.

221120222021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616920373.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 221120222021122 in words is "two hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-two".