221020230022 has 4 divisors (see below), whose sum is σ = 331530345036. Its totient is φ = 110510115010.

The previous prime is 221020229981. The next prime is 221020230029. The reversal of 221020230022 is 220032020122.

221020230022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 221020229978 and 221020230005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020230029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55255057504 + ... + 55255057507.

It is an arithmetic number, because the mean of its divisors is an integer number (82882586259).

Almost surely, 2^221020230022 is an apocalyptic number.

221020230022 is a deficient number, since it is larger than the sum of its proper divisors (110510115014).

221020230022 is a wasteful number, since it uses less digits than its factorization.

221020230022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110510115013.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 221020230022 its reverse (220032020122), we get a palindrome (441052250144).

The spelling of 221020230022 in words is "two hundred twenty-one billion, twenty million, two hundred thirty thousand, twenty-two".