221000210020022 has 4 divisors (see below), whose sum is σ = 331500315030036. Its totient is φ = 110500105010010.

The previous prime is 221000210019997. The next prime is 221000210020033. The reversal of 221000210020022 is 220020012000122.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 221000210019979 and 221000210020006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55250052505004 + ... + 55250052505007.

It is an arithmetic number, because the mean of its divisors is an integer number (82875078757509).

Almost surely, 2^{221000210020022} is an apocalyptic number.

221000210020022 is a deficient number, since it is larger than the sum of its proper divisors (110500105010014).

221000210020022 is a wasteful number, since it uses less digits than its factorization.

221000210020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110500105010013.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221000210020022 its reverse (220020012000122), we get a palindrome (441020222020144).

The spelling of 221000210020022 in words is "two hundred twenty-one trillion, two hundred ten million, twenty thousand, twenty-two".