1012100212168 has 8 divisors (see below), whose sum is σ = 1897687897830. Its totient is φ = 506050106080.

The previous prime is 1012100212147. The next prime is 1012100212169. The reversal of 1012100212168 is 8612120012101.

It can be written as a sum of positive squares in only one way, i.e., 722503400004 + 289596812164 = 850002^2 + 538142^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1012100212169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63256263253 + ... + 63256263268.

Almost surely, 2^{1012100212168} is an apocalyptic number.

It is an amenable number.

1012100212168 is a deficient number, since it is larger than the sum of its proper divisors (885587685662).

1012100212168 is a wasteful number, since it uses less digits than its factorization.

1012100212168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126512526527 (or 126512526523 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

Adding to 1012100212168 its reverse (8612120012101), we get a palindrome (9624220224269).

The spelling of 1012100212168 in words is "one trillion, twelve billion, one hundred million, two hundred twelve thousand, one hundred sixty-eight".