212011100202220 has 96 divisors (see below), whose sum is σ = 503545821065280. Its totient is φ = 74273617367040.

The previous prime is 212011100202203. The next prime is 212011100202241. The reversal of 212011100202220 is 22202001110212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212011100202194 and 212011100202203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33441649 + ... + 39272968.

It is an arithmetic number, because the mean of its divisors is an integer number (5245268969430).

Almost surely, 2^{212011100202220} is an apocalyptic number.

212011100202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011100202220 is an abundant number, since it is smaller than the sum of its proper divisors (291534720863060).

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

212011100202220 is a wasteful number, since it uses less digits than its factorization.

212011100202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72715123 (or 72715121 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212011100202220 its reverse (22202001110212), we get a palindrome (234213101312432).

The spelling of 212011100202220 in words is "two hundred twelve trillion, eleven billion, one hundred million, two hundred two thousand, two hundred twenty".