12211212202004 has 24 divisors (see below), whose sum is σ = 21377804085120. Its totient is φ = 6103268541216.

The previous prime is 12211212202003. The next prime is 12211212202043. The reversal of 12211212202004 is 40020221211221.

It is a happy number.

It is a super-2 number, since 2×12211212202004² (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 (12211212202003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160553417 + ... + 160629455.

It is an arithmetic number, because the mean of its divisors is an integer number (890741836880).

Almost surely, 2^{12211212202004} is an apocalyptic number.

It is an amenable number.

12211212202004 is a deficient number, since it is larger than the sum of its proper divisors (9166591883116).

12211212202004 is a wasteful number, since it uses less digits than its factorization.

12211212202004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90887 (or 90885 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12211212202004 its reverse (40020221211221), we get a palindrome (52231433413225).

The spelling of 12211212202004 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, two hundred two thousand, four".