12211400142444 has 12 divisors (see below), whose sum is σ = 28493266999064. Its totient is φ = 4070466714144.

The previous prime is 12211400142439. The next prime is 12211400142449. The reversal of 12211400142444 is 44424100411221.

12211400142444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12211400142439) and next prime (12211400142449).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12211400142449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508808339257 + ... + 508808339280.

Almost surely, 2^{12211400142444} is an apocalyptic number.

It is an amenable number.

12211400142444 is an abundant number, since it is smaller than the sum of its proper divisors (16281866856620).

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

12211400142444 is a wasteful number, since it uses less digits than its factorization.

12211400142444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017616678544 (or 1017616678542 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 12211400142444 its reverse (44424100411221), we get a palindrome (56635500553665).

The spelling of 12211400142444 in words is "twelve trillion, two hundred eleven billion, four hundred million, one hundred forty-two thousand, four hundred forty-four".