102220121112 has 64 divisors (see below), whose sum is σ = 262507663200. Its totient is φ = 33146081280.

The previous prime is 102220121077. The next prime is 102220121119. The reversal of 102220121112 is 211121022201.

It is a junction number, because it is equal to n+sod(n) for n = 102220121091 and 102220121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220121119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7335912 + ... + 7349832.

Almost surely, 2^102220121112 is an apocalyptic number.

102220121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102220121112 is an abundant number, since it is smaller than the sum of its proper divisors (160287542088).

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

102220121112 is a wasteful number, since it uses less digits than its factorization.

102220121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22236 (or 22232 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102220121112 its reverse (211121022201), we get a palindrome (313341143313).

The spelling of 102220121112 in words is "one hundred two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twelve".