212333110021212 has 48 divisors (see below), whose sum is σ = 513872263162272. Its totient is φ = 68182962796800.

The previous prime is 212333110021147. The next prime is 212333110021223. The reversal of 212333110021212 is 212120011333212.

It is a super-2 number, since 2×212333110021212² (a number of 29 digits) contains 22 as substring.

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, 2367419143 + ... + 2367508830.

It is an arithmetic number, because the mean of its divisors is an integer number (10705672149214).

Almost surely, 2^{212333110021212} is an apocalyptic number.

It is an amenable number.

212333110021212 is an abundant number, since it is smaller than the sum of its proper divisors (301539153141060).

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

212333110021212 is a wasteful number, since it uses less digits than its factorization.

212333110021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734928118 (or 4734928116 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 212333110021212 its reverse (212120011333212), we get a palindrome (424453121354424).

The spelling of 212333110021212 in words is "two hundred twelve trillion, three hundred thirty-three billion, one hundred ten million, twenty-one thousand, two hundred twelve".