100012022121 has 16 divisors (see below), whose sum is σ = 147937662720. Its totient is φ = 59586000720.

The previous prime is 100012022111. The next prime is 100012022129. The reversal of 100012022121 is 121220210001.

It is not a de Polignac number, because 100012022121 - 2¹⁰ = 100012021097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100012022097 and 100012022106.

It is not an unprimeable number, because it can be changed into a prime (100012022129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25681675 + ... + 25685568.

It is an arithmetic number, because the mean of its divisors is an integer number (9246103920).

Almost surely, 2^100012022121 is an apocalyptic number.

100012022121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100012022121 is a deficient number, since it is larger than the sum of its proper divisors (47925640599).

100012022121 is a wasteful number, since it uses less digits than its factorization.

100012022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51367316.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100012022121 its reverse (121220210001), we get a palindrome (221232232122).

The spelling of 100012022121 in words is "one hundred billion, twelve million, twenty-two thousand, one hundred twenty-one".