212122110010020 has 96 divisors (see below), whose sum is σ = 718719619822848. Its totient is φ = 45632991731712.

The previous prime is 212122110009983. The next prime is 212122110010079. The reversal of 212122110010020 is 20010011221212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14854482357 + ... + 14854496636.

It is an arithmetic number, because the mean of its divisors is an integer number (7486662706488).

Almost surely, 2^{212122110010020} is an apocalyptic number.

212122110010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122110010020 is an abundant number, since it is smaller than the sum of its proper divisors (506597509812828).

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

212122110010020 is a wasteful number, since it uses less digits than its factorization.

212122110010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29708979029 (or 29708979027 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212122110010020 its reverse (20010011221212), we get a palindrome (232132121231232).

The spelling of 212122110010020 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred ten million, ten thousand, twenty".