102022020221 has 8 divisors (see below), whose sum is σ = 111381017088. Its totient is φ = 92677068000.

The previous prime is 102022020193. The next prime is 102022020227. The reversal of 102022020221 is 122020220201.

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

It is a de Polignac number, because none of the positive numbers 2^k-102022020221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102022020196 and 102022020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022020227) 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 7 ways as a sum of consecutive naturals, for example, 3495965 + ... + 3525026.

It is an arithmetic number, because the mean of its divisors is an integer number (13922627136).

Almost surely, 2^102022020221 is an apocalyptic number.

102022020221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102022020221 is a deficient number, since it is larger than the sum of its proper divisors (9358996867).

102022020221 is a wasteful number, since it uses less digits than its factorization.

102022020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022323.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102022020221 its reverse (122020220201), we get a palindrome (224042240422).

The spelling of 102022020221 in words is "one hundred two billion, twenty-two million, twenty thousand, two hundred twenty-one".