100121000000210 has 24 divisors (see below), whose sum is σ = 209641114287180. Its totient is φ = 34327199999904.

The previous prime is 100121000000137. The next prime is 100121000000227. The reversal of 100121000000210 is 12000000121001.

It can be written as a sum of positive squares in 2 ways, for example, as 98565918673369 + 1555081326841 = 9928037^2 + 1247029^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102164285225 + ... + 102164286204.

Almost surely, 2^{100121000000210} is an apocalyptic number.

100121000000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121000000210 is an abundant number, since it is smaller than the sum of its proper divisors (109520114286970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100121000000210 is a wasteful number, since it uses less digits than its factorization.

100121000000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204328571450 (or 204328571443 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100121000000210 its reverse (12000000121001), we get a palindrome (112121000121211).

The spelling of 100121000000210 in words is "one hundred trillion, one hundred twenty-one billion, two hundred ten", and thus it is an aban number.