221002220022 has 8 divisors (see below), whose sum is σ = 442004440056. Its totient is φ = 73667406672.

The previous prime is 221002219987. The next prime is 221002220051. The reversal of 221002220022 is 220022200122.

221002220022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

221002220022 is an admirable number.

It is a super-3 number, since 3×221002220022³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221002219983 and 221002220010.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 18416851663 + ... + 18416851674.

It is an arithmetic number, because the mean of its divisors is an integer number (55250555007).

Almost surely, 2^221002220022 is an apocalyptic number.

221002220022 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.

221002220022 is a wasteful number, since it uses less digits than its factorization.

221002220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36833703342.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 221002220022 its reverse (220022200122), we get a palindrome (441024420144).

The spelling of 221002220022 in words is "two hundred twenty-one billion, two million, two hundred twenty thousand, twenty-two".