18835353720222 has 32 divisors (see below), whose sum is σ = 40568622315648. Its totient is φ = 5795469431136.

The previous prime is 18835353720199. The next prime is 18835353720233. The reversal of 18835353720222 is 22202735353881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31351953 + ... + 31947075.

It is an arithmetic number, because the mean of its divisors is an integer number (1267769447364).

Almost surely, 2^{18835353720222} is an apocalyptic number.

18835353720222 is an abundant number, since it is smaller than the sum of its proper divisors (21733268595426).

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

18835353720222 is a wasteful number, since it uses less digits than its factorization.

18835353720222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000904.

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 18835353720222 in words is "eighteen trillion, eight hundred thirty-five billion, three hundred fifty-three million, seven hundred twenty thousand, two hundred twenty-two".