212202022110020 has 24 divisors (see below), whose sum is σ = 445624913122368. Its totient is φ = 84880681855200.

The previous prime is 212202022109963. The next prime is 212202022110031. The reversal of 212202022110020 is 20011220202212.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 6397025 + ... + 21571415.

It is an arithmetic number, because the mean of its divisors is an integer number (18567704713432).

Almost surely, 2^{212202022110020} is an apocalyptic number.

212202022110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212202022110020 is an abundant number, since it is smaller than the sum of its proper divisors (233422891012348).

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

212202022110020 is a wasteful number, since it uses less digits than its factorization.

212202022110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15873611 (or 15873609 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212202022110020 its reverse (20011220202212), we get a palindrome (232213242312232).

The spelling of 212202022110020 in words is "two hundred twelve trillion, two hundred two billion, twenty-two million, one hundred ten thousand, twenty".