1012121653466 has 16 divisors (see below), whose sum is σ = 1892798936640. Its totient is φ = 394333111680.

The previous prime is 1012121653423. The next prime is 1012121653483. The reversal of 1012121653466 is 6643561212101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3286109111 + ... + 3286109418.

It is an arithmetic number, because the mean of its divisors is an integer number (118299933540).

Almost surely, 2^{1012121653466} is an apocalyptic number.

1012121653466 is a deficient number, since it is larger than the sum of its proper divisors (880677283174).

1012121653466 is a wasteful number, since it uses less digits than its factorization.

1012121653466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572218549.

The product of its (nonzero) digits is 51840, while the sum is 38.

Adding to 1012121653466 its reverse (6643561212101), we get a palindrome (7655682865567).

The spelling of 1012121653466 in words is "one trillion, twelve billion, one hundred twenty-one million, six hundred fifty-three thousand, four hundred sixty-six".