102021222012 has 24 divisors (see below), whose sum is σ = 239647170000. Its totient is φ = 33778838016.

The previous prime is 102021222011. The next prime is 102021222013. The reversal of 102021222012 is 210222120201.

It is an interprime number because it is at equal distance from previous prime (102021222011) and next prime (102021222013).

It is a junction number, because it is equal to n+sod(n) for n = 102021221982 and 102021222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021222011) 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 7 ways as a sum of consecutive naturals, for example, 28527637 + ... + 28531212.

It is an arithmetic number, because the mean of its divisors is an integer number (9985298750).

Almost surely, 2^102021222012 is an apocalyptic number.

102021222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102021222012 is an abundant number, since it is smaller than the sum of its proper divisors (137625947988).

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

102021222012 is a wasteful number, since it uses less digits than its factorization.

102021222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57059005 (or 57059003 counting only the distinct ones).

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

Adding to 102021222012 its reverse (210222120201), we get a palindrome (312243342213).

The spelling of 102021222012 in words is "one hundred two billion, twenty-one million, two hundred twenty-two thousand, twelve".