221201201022 has 8 divisors (see below), whose sum is σ = 442402402056. Its totient is φ = 73733733672.

The previous prime is 221201200973. The next prime is 221201201057. The reversal of 221201201022 is 220102102122.

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

221201201022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221201200992 and 221201201010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18433433413 + ... + 18433433424.

It is an arithmetic number, because the mean of its divisors is an integer number (55300300257).

Almost surely, 2^221201201022 is an apocalyptic number.

221201201022 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.

221201201022 is a wasteful number, since it uses less digits than its factorization.

221201201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36866866842.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221201201022 its reverse (220102102122), we get a palindrome (441303303144).

The spelling of 221201201022 in words is "two hundred twenty-one billion, two hundred one million, two hundred one thousand, twenty-two".