102022221221 has 8 divisors (see below), whose sum is σ = 103001945760. Its totient is φ = 101042982928.

The previous prime is 102022221209. The next prime is 102022221239. The reversal of 102022221221 is 122122220201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102022221221 - 2³⁴ = 84842352037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102022221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022221251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307310 + ... + 546336.

It is an arithmetic number, because the mean of its divisors is an integer number (12875243220).

Almost surely, 2^102022221221 is an apocalyptic number.

It is an amenable number.

102022221221 is a deficient number, since it is larger than the sum of its proper divisors (979724539).

102022221221 is a wasteful number, since it uses less digits than its factorization.

102022221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243123.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102022221221 its reverse (122122220201), we get a palindrome (224144441422).

The spelling of 102022221221 in words is "one hundred two billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".