1000012112122 has 16 divisors (see below), whose sum is σ = 1503680338944. Its totient is φ = 498785490000.

The previous prime is 1000012112093. The next prime is 1000012112153. The reversal of 1000012112122 is 2212112100001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17275047 + ... + 17332837.

It is an arithmetic number, because the mean of its divisors is an integer number (93980021184).

Almost surely, 2^{1000012112122} is an apocalyptic number.

1000012112122 is a deficient number, since it is larger than the sum of its proper divisors (503668226822).

1000012112122 is a wasteful number, since it uses less digits than its factorization.

1000012112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78765.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000012112122 its reverse (2212112100001), we get a palindrome (3212124212123).

The spelling of 1000012112122 in words is "one trillion, twelve million, one hundred twelve thousand, one hundred twenty-two".