12211111101204 has 72 divisors (see below), whose sum is σ = 32690029776768. Its totient is φ = 3830075270400.

The previous prime is 12211111101193. The next prime is 12211111101269. The reversal of 12211111101204 is 40210111111221.

It is a super-2 number, since 2×12211111101204² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482629 + ... + 4965395.

It is an arithmetic number, because the mean of its divisors is an integer number (454028191344).

Almost surely, 2^{12211111101204} is an apocalyptic number.

It is an amenable number.

12211111101204 is an abundant number, since it is smaller than the sum of its proper divisors (20478918675564).

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

12211111101204 is a wasteful number, since it uses less digits than its factorization.

12211111101204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487245 (or 4487240 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12211111101204 its reverse (40210111111221), we get a palindrome (52421222212425).

The spelling of 12211111101204 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, one hundred one thousand, two hundred four".