102220212228 has 24 divisors (see below), whose sum is σ = 244331240160. Its totient is φ = 33242345280.

The previous prime is 102220212221. The next prime is 102220212253. The reversal of 102220212228 is 822212022201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102220212198 and 102220212207.

It is not an unprimeable number, because it can be changed into a prime (102220212221) 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, 103881838 + ... + 103882821.

It is an arithmetic number, because the mean of its divisors is an integer number (10180468340).

Almost surely, 2^102220212228 is an apocalyptic number.

It is an amenable number.

102220212228 is an abundant number, since it is smaller than the sum of its proper divisors (142111027932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102220212228 is a wasteful number, since it uses less digits than its factorization.

102220212228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207764707 (or 207764705 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 102220212228 its reverse (822212022201), we get a palindrome (924432234429).

The spelling of 102220212228 in words is "one hundred two billion, two hundred twenty million, two hundred twelve thousand, two hundred twenty-eight".