1211144013364 has 96 divisors (see below), whose sum is σ = 2374003779840. Its totient is φ = 537281740800.

The previous prime is 1211144013311. The next prime is 1211144013377. The reversal of 1211144013364 is 4633104411121.

It is a super-2 number, since 2×1211144013364² (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 31 ways as a sum of consecutive naturals, for example, 322025244 + ... + 322029004.

It is an arithmetic number, because the mean of its divisors is an integer number (24729206040).

Almost surely, 2^{1211144013364} is an apocalyptic number.

It is an amenable number.

1211144013364 is a deficient number, since it is larger than the sum of its proper divisors (1162859766476).

1211144013364 is a wasteful number, since it uses less digits than its factorization.

1211144013364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969 (or 4967 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 1211144013364 its reverse (4633104411121), we get a palindrome (5844248424485).

The spelling of 1211144013364 in words is "one trillion, two hundred eleven billion, one hundred forty-four million, thirteen thousand, three hundred sixty-four".