1211241144404 has 48 divisors (see below), whose sum is σ = 2235340800000. Its totient is φ = 572690459232.

The previous prime is 1211241144359. The next prime is 1211241144427. The reversal of 1211241144404 is 4044411421121.

It is a super-2 number, since 2×1211241144404² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183545897 + ... + 183552495.

It is an arithmetic number, because the mean of its divisors is an integer number (46569600000).

Almost surely, 2^{1211241144404} is an apocalyptic number.

It is an amenable number.

1211241144404 is a deficient number, since it is larger than the sum of its proper divisors (1024099655596).

1211241144404 is a wasteful number, since it uses less digits than its factorization.

1211241144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10700 (or 10698 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

Adding to 1211241144404 its reverse (4044411421121), we get a palindrome (5255652565525).

The spelling of 1211241144404 in words is "one trillion, two hundred eleven billion, two hundred forty-one million, one hundred forty-four thousand, four hundred four".