102201022221 has 16 divisors (see below), whose sum is σ = 136588999680. Its totient is φ = 67973701680.

The previous prime is 102201022181. The next prime is 102201022241. The reversal of 102201022221 is 122220102201.

It is not a de Polignac number, because 102201022221 - 2¹³ = 102201014029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102201022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201022241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2469820 + ... + 2510858.

It is an arithmetic number, because the mean of its divisors is an integer number (8536812480).

Almost surely, 2^102201022221 is an apocalyptic number.

It is an amenable number.

102201022221 is a deficient number, since it is larger than the sum of its proper divisors (34387977459).

102201022221 is a wasteful number, since it uses less digits than its factorization.

102201022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42976.

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

Adding to 102201022221 its reverse (122220102201), we get a palindrome (224421124422).

The spelling of 102201022221 in words is "one hundred two billion, two hundred one million, twenty-two thousand, two hundred twenty-one".