212100003221232 has 80 divisors (see below), whose sum is σ = 626203052836352. Its totient is φ = 60599706405120.

The previous prime is 212100003221209. The next prime is 212100003221251. The reversal of 212100003221232 is 232122300001212.

It is a super-2 number, since 2×212100003221232² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 212100003221199 and 212100003221208.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 73100757 + ... + 75946827.

Almost surely, 2^{212100003221232} is an apocalyptic number.

It is an amenable number.

212100003221232 is an abundant number, since it is smaller than the sum of its proper divisors (414103049615120).

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

212100003221232 is a wasteful number, since it uses less digits than its factorization.

212100003221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067886 (or 3067880 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212100003221232 its reverse (232122300001212), we get a palindrome (444222303222444).

The spelling of 212100003221232 in words is "two hundred twelve trillion, one hundred billion, three million, two hundred twenty-one thousand, two hundred thirty-two".