216220195202 has 54 divisors (see below), whose sum is σ = 362447976681. Its totient is φ = 96667494000.

The previous prime is 216220195199. The next prime is 216220195253. The reversal of 216220195202 is 202591022612.

216220195202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 122968747561 + 93251447641 = 350669^2 + 305371^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=328801.

It is a Duffinian number.

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 26 ways as a sum of consecutive naturals, for example, 513586952 + ... + 513587372.

Almost surely, 2^216220195202 is an apocalyptic number.

216220195202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

216220195202 is a deficient number, since it is larger than the sum of its proper divisors (146227781479).

216220195202 is an frugal number, since it uses more digits than its factorization.

216220195202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

Multiplying 216220195202 by its sum of digits (32), we get a square (6919046246464 = 2630408²).

The spelling of 216220195202 in words is "two hundred sixteen billion, two hundred twenty million, one hundred ninety-five thousand, two hundred two".