102220221012 has 96 divisors (see below), whose sum is σ = 301489558272. Its totient is φ = 26230542336.

The previous prime is 102220221011. The next prime is 102220221109. The reversal of 102220221012 is 210122022201.

It is a junction number, because it is equal to n+sod(n) for n = 102220220982 and 102220221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220221011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1224573 + ... + 1305380.

It is an arithmetic number, because the mean of its divisors is an integer number (3140516232).

Almost surely, 2^102220221012 is an apocalyptic number.

102220221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102220221012 is an abundant number, since it is smaller than the sum of its proper divisors (199269337260).

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

102220221012 is a wasteful number, since it uses less digits than its factorization.

102220221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530017 (or 2530015 counting only the distinct ones).

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

Adding to 102220221012 its reverse (210122022201), we get a palindrome (312342243213).

The spelling of 102220221012 in words is "one hundred two billion, two hundred twenty million, two hundred twenty-one thousand, twelve".