212534111224220 has 12 divisors (see below), whose sum is σ = 446321633570904. Its totient is φ = 85013644489680.

The previous prime is 212534111224187. The next prime is 212534111224229. The reversal of 212534111224220 is 22422111435212.

It is a happy number.

It is a super-2 number, since 2×212534111224220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212534111224229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5313352780586 + ... + 5313352780625.

It is an arithmetic number, because the mean of its divisors is an integer number (37193469464242).

Almost surely, 2^{212534111224220} is an apocalyptic number.

212534111224220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212534111224220 is an abundant number, since it is smaller than the sum of its proper divisors (233787522346684).

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

212534111224220 is a wasteful number, since it uses less digits than its factorization.

212534111224220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10626705561220 (or 10626705561218 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 212534111224220 its reverse (22422111435212), we get a palindrome (234956222659432).

The spelling of 212534111224220 in words is "two hundred twelve trillion, five hundred thirty-four billion, one hundred eleven million, two hundred twenty-four thousand, two hundred twenty".