12211212011000 has 64 divisors (see below), whose sum is σ = 30078143316000. Its totient is φ = 4627406649600.

The previous prime is 12211212010957. The next prime is 12211212011003. The reversal of 12211212011000 is 11021211221.

12211212011000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211212011000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211212011003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321328685 + ... + 321366684.

Almost surely, 2^{12211212011000} is an apocalyptic number.

12211212011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211212011000 is an abundant number, since it is smaller than the sum of its proper divisors (17866931305000).

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

12211212011000 is a wasteful number, since it uses less digits than its factorization.

12211212011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642695409 (or 642695395 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12211212011000 its reverse (11021211221), we get a palindrome (12222233222221).

The spelling of 12211212011000 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, eleven thousand".