102213684612 has 144 divisors (see below), whose sum is σ = 290537065728. Its totient is φ = 30063179520.

The previous prime is 102213684607. The next prime is 102213684637. The reversal of 102213684612 is 216486312201.

It is a happy number.

102213684612 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 1 + 36 + 8 + 4 + 612 = 666.

It is a super-2 number, since 2×102213684612² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 28210633 + ... + 28214255.

It is an arithmetic number, because the mean of its divisors is an integer number (2017618512).

Almost surely, 2^102213684612 is an apocalyptic number.

102213684612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102213684612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145268532864).

102213684612 is an abundant number, since it is smaller than the sum of its proper divisors (188323381116).

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

102213684612 is a wasteful number, since it uses less digits than its factorization.

102213684612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6290 (or 6285 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

Adding to 102213684612 its reverse (216486312201), we get a palindrome (318699996813).

The spelling of 102213684612 in words is "one hundred two billion, two hundred thirteen million, six hundred eighty-four thousand, six hundred twelve".