1211444204212 has 36 divisors (see below), whose sum is σ = 2330608050400. Its totient is φ = 550578465360.

The previous prime is 1211444204189. The next prime is 1211444204219. The reversal of 1211444204212 is 2124024441121.

It is a super-3 number, since 3×1211444204212³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211444204219) 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, 3314539 + ... + 3661837.

Almost surely, 2^{1211444204212} is an apocalyptic number.

It is an amenable number.

1211444204212 is a deficient number, since it is larger than the sum of its proper divisors (1119163846188).

1211444204212 is a wasteful number, since it uses less digits than its factorization.

1211444204212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354532 (or 354519 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 1211444204212 its reverse (2124024441121), we get a palindrome (3335468645333).

The spelling of 1211444204212 in words is "one trillion, two hundred eleven billion, four hundred forty-four million, two hundred four thousand, two hundred twelve".