12212013213234 has 24 divisors (see below), whose sum is σ = 26459740249020. Its totient is φ = 4070612873088.

The previous prime is 12212013213233. The next prime is 12212013213247. The reversal of 12212013213234 is 43231231021221.

12212013213234 is a `hidden beast` number, since 1 + 2 + 2 + 12 + 0 + 1 + 321 + 323 + 4 = 666.

12212013213234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10062871873209 + 2149141340025 = 3172203^2 + 1465995^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12212013213198 and 12212013213207.

It is not an unprimeable number, because it can be changed into a prime (12212013213233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3546379 + ... + 6082830.

Almost surely, 2^{12212013213234} is an apocalyptic number.

12212013213234 is an abundant number, since it is smaller than the sum of its proper divisors (14247727035786).

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

12212013213234 is a wasteful number, since it uses less digits than its factorization.

12212013213234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9699674 (or 9699671 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 12212013213234 its reverse (43231231021221), we get a palindrome (55443244234455).

The spelling of 12212013213234 in words is "twelve trillion, two hundred twelve billion, thirteen million, two hundred thirteen thousand, two hundred thirty-four".