221201001022 has 8 divisors (see below), whose sum is σ = 342504775872. Its totient is φ = 107032742400.

The previous prime is 221201000989. The next prime is 221201001089. The reversal of 221201001022 is 220100102122.

It is a happy number.

221201001022 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.

It is a junction number, because it is equal to n+sod(n) for n = 221201000993 and 221201001011.

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, 1783878979 + ... + 1783879102.

It is an arithmetic number, because the mean of its divisors is an integer number (42813096984).

Almost surely, 2^221201001022 is an apocalyptic number.

221201001022 is a deficient number, since it is larger than the sum of its proper divisors (121303774850).

221201001022 is a wasteful number, since it uses less digits than its factorization.

221201001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567758114.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221201001022 its reverse (220100102122), we get a palindrome (441301103144).

The spelling of 221201001022 in words is "two hundred twenty-one billion, two hundred one million, one thousand, twenty-two".