221020221020094 has 48 divisors (see below), whose sum is σ = 482523438123792. Its totient is φ = 73114512741504.

The previous prime is 221020221020087. The next prime is 221020221020099. The reversal of 221020221020094 is 490020122020122.

221020221020094 is a `hidden beast` number, since 2 + 210 + 20 + 221 + 0 + 200 + 9 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020221020099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85130149 + ... + 87687984.

It is an arithmetic number, because the mean of its divisors is an integer number (10052571627579).

Almost surely, 2^{221020221020094} is an apocalyptic number.

221020221020094 is an abundant number, since it is smaller than the sum of its proper divisors (261503217103698).

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

221020221020094 is a wasteful number, since it uses less digits than its factorization.

221020221020094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172818681 (or 172818678 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 221020221020094 in words is "two hundred twenty-one trillion, twenty billion, two hundred twenty-one million, twenty thousand, ninety-four".