102203021113212 has 48 divisors (see below), whose sum is σ = 239057975439360. Its totient is φ = 33984259493952.

The previous prime is 102203021113183. The next prime is 102203021113213. The reversal of 102203021113212 is 212311120302201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102203021113213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12691738 + ... + 19117694.

It is an arithmetic number, because the mean of its divisors is an integer number (4980374488320).

Almost surely, 2^{102203021113212} is an apocalyptic number.

102203021113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102203021113212 is an abundant number, since it is smaller than the sum of its proper divisors (136854954326148).

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

102203021113212 is a wasteful number, since it uses less digits than its factorization.

102203021113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429210 (or 6429208 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 102203021113212 its reverse (212311120302201), we get a palindrome (314514141415413).

The spelling of 102203021113212 in words is "one hundred two trillion, two hundred three billion, twenty-one million, one hundred thirteen thousand, two hundred twelve".