100212200121 has 12 divisors (see below), whose sum is σ = 146867467376. Its totient is φ = 60734666520.

The previous prime is 100212200119. The next prime is 100212200141. The reversal of 100212200121 is 121002212001.

It is not a de Polignac number, because 100212200121 - 2¹ = 100212200119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100212200097 and 100212200106.

It is not an unprimeable number, because it can be changed into a prime (100212200141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138032971 + ... + 138033696.

Almost surely, 2^100212200121 is an apocalyptic number.

100212200121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100212200121 is a deficient number, since it is larger than the sum of its proper divisors (46655267255).

100212200121 is a wasteful number, since it uses less digits than its factorization.

100212200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276066692 (or 276066681 counting only the distinct ones).

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

Adding to 100212200121 its reverse (121002212001), we get a palindrome (221214412122).

The spelling of 100212200121 in words is "one hundred billion, two hundred twelve million, two hundred thousand, one hundred twenty-one".