102220212222 has 32 divisors (see below), whose sum is σ = 228309127200. Its totient is φ = 33900439104.

The previous prime is 102220212221. The next prime is 102220212253. The reversal of 102220212222 is 222212022201.

102220212222 is a `hidden beast` number, since 10 + 2 + 220 + 212 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102220212195 and 102220212204.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4793847 + ... + 4815122.

It is an arithmetic number, because the mean of its divisors is an integer number (7134660225).

Almost surely, 2^102220212222 is an apocalyptic number.

102220212222 is an abundant number, since it is smaller than the sum of its proper divisors (126088914978).

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

102220212222 is a wasteful number, since it uses less digits than its factorization.

102220212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9609177 (or 9609171 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102220212222 its reverse (222212022201), we get a palindrome (324432234423).

The spelling of 102220212222 in words is "one hundred two billion, two hundred twenty million, two hundred twelve thousand, two hundred twenty-two".