212201112210020 has 48 divisors (see below), whose sum is σ = 461346257458800. Its totient is φ = 81889953546240.

The previous prime is 212201112209987. The next prime is 212201112210023. The reversal of 212201112210020 is 20012211102212.

It can be written as a sum of positive squares in 8 ways, for example, as 9702577090816 + 202498535119204 = 3114896^2 + 14230198^2 .

It is not an unprimeable number, because it can be changed into a prime (212201112210023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141170141 + ... + 142665380.

It is an arithmetic number, because the mean of its divisors is an integer number (9611380363725).

Almost surely, 2^{212201112210020} is an apocalyptic number.

212201112210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201112210020 is an abundant number, since it is smaller than the sum of its proper divisors (249145145248780).

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

212201112210020 is a wasteful number, since it uses less digits than its factorization.

212201112210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283836848 (or 283836846 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212201112210020 its reverse (20012211102212), we get a palindrome (232213323312232).

The spelling of 212201112210020 in words is "two hundred twelve trillion, two hundred one billion, one hundred twelve million, two hundred ten thousand, twenty".