212311200102220 has 96 divisors (see below), whose sum is σ = 478561931059968. Its totient is φ = 78831554199552.

The previous prime is 212311200102181. The next prime is 212311200102247. The reversal of 212311200102220 is 22201002113212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 928724572 + ... + 928953148.

It is an arithmetic number, because the mean of its divisors is an integer number (4985020115208).

Almost surely, 2^{212311200102220} is an apocalyptic number.

212311200102220 is a gapful number since it is divisible by the number (20) 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 212311200102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239280965529984).

212311200102220 is an abundant number, since it is smaller than the sum of its proper divisors (266250730957748).

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

212311200102220 is a wasteful number, since it uses less digits than its factorization.

212311200102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266099 (or 266097 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212311200102220 its reverse (22201002113212), we get a palindrome (234512202215432).

The spelling of 212311200102220 in words is "two hundred twelve trillion, three hundred eleven billion, two hundred million, one hundred two thousand, two hundred twenty".