105211213144 has 8 divisors (see below), whose sum is σ = 197271024660. Its totient is φ = 52605606568.

The previous prime is 105211213117. The next prime is 105211213153. The reversal of 105211213144 is 441312112501.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×105211213144² (a number of 23 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 as a sum of consecutive naturals, namely, 6575700814 + ... + 6575700829.

Almost surely, 2^105211213144 is an apocalyptic number.

It is an amenable number.

105211213144 is a deficient number, since it is larger than the sum of its proper divisors (92059811516).

105211213144 is a wasteful number, since it uses less digits than its factorization.

105211213144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13151401649 (or 13151401645 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 105211213144 its reverse (441312112501), we get a palindrome (546523325645).

The spelling of 105211213144 in words is "one hundred five billion, two hundred eleven million, two hundred thirteen thousand, one hundred forty-four".