221031020022 has 8 divisors (see below), whose sum is σ = 442062040056. Its totient is φ = 73677006672.

The previous prime is 221031020017. The next prime is 221031020029. The reversal of 221031020022 is 220020130122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

221031020022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221031019983 and 221031020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221031020029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18419251663 + ... + 18419251674.

It is an arithmetic number, because the mean of its divisors is an integer number (55257755007).

Almost surely, 2^221031020022 is an apocalyptic number.

221031020022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221031020022 is a wasteful number, since it uses less digits than its factorization.

221031020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36838503342.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 221031020022 its reverse (220020130122), we get a palindrome (441051150144).

The spelling of 221031020022 in words is "two hundred twenty-one billion, thirty-one million, twenty thousand, twenty-two".