221020011001122 has 16 divisors (see below), whose sum is σ = 442102999721760. Its totient is φ = 73662840713792.

The previous prime is 221020011001109. The next prime is 221020011001129. The reversal of 221020011001122 is 221100110020122.

It is not an unprimeable number, because it can be changed into a prime (221020011001129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2624026023 + ... + 2624110250.

It is an arithmetic number, because the mean of its divisors is an integer number (27631437482610).

Almost surely, 2^{221020011001122} is an apocalyptic number.

221020011001122 is an abundant number, since it is smaller than the sum of its proper divisors (221082988720638).

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

221020011001122 is a wasteful number, since it uses less digits than its factorization.

221020011001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248143297.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221020011001122 its reverse (221100110020122), we get a palindrome (442120121021244).

The spelling of 221020011001122 in words is "two hundred twenty-one trillion, twenty billion, eleven million, one thousand, one hundred twenty-two".