221022100010122 has 16 divisors (see below), whose sum is σ = 332233266573000. Its totient is φ = 110277759271680.

The previous prime is 221022100010119. The next prime is 221022100010171. The reversal of 221022100010122 is 221010001220122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 159826510347001 + 61195589663121 = 12642251^2 + 7822761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221022100010096 and 221022100010105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14932497 + ... + 25788052.

Almost surely, 2^{221022100010122} is an apocalyptic number.

221022100010122 is a deficient number, since it is larger than the sum of its proper divisors (111211166562878).

221022100010122 is a wasteful number, since it uses less digits than its factorization.

221022100010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40726281.

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

Adding to 221022100010122 its reverse (221010001220122), we get a palindrome (442032101230244).

The spelling of 221022100010122 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred million, ten thousand, one hundred twenty-two".