102721446212 has 144 divisors (see below), whose sum is σ = 229345966080. Its totient is φ = 39400912320.

The previous prime is 102721446173. The next prime is 102721446259. The reversal of 102721446212 is 212644127201.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 64889573 + ... + 64891155.

It is an arithmetic number, because the mean of its divisors is an integer number (1592680320).

Almost surely, 2^102721446212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102721446212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114672983040).

102721446212 is an abundant number, since it is smaller than the sum of its proper divisors (126624519868).

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

102721446212 is a wasteful number, since it uses less digits than its factorization.

102721446212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 102721446212 in words is "one hundred two billion, seven hundred twenty-one million, four hundred forty-six thousand, two hundred twelve".