212122222212020 has 24 divisors (see below), whose sum is σ = 459826236538368. Its totient is φ = 82111827952800.

The previous prime is 212122222212013. The next prime is 212122222212023. The reversal of 212122222212020 is 20212222221212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122222212023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 171066307616 + ... + 171066308855.

It is an arithmetic number, because the mean of its divisors is an integer number (19159426522432).

Almost surely, 2^{212122222212020} is an apocalyptic number.

212122222212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122222212020 is an abundant number, since it is smaller than the sum of its proper divisors (247704014326348).

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

212122222212020 is a wasteful number, since it uses less digits than its factorization.

212122222212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342132616511 (or 342132616509 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 212122222212020 its reverse (20212222221212), we get a palindrome (232334444433232).

The spelling of 212122222212020 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, twenty".