100121000211 has 12 divisors (see below), whose sum is σ = 149975490392. Its totient is φ = 66747333312.

The previous prime is 100121000201. The next prime is 100121000237. The reversal of 100121000211 is 112000121001.

It is a happy number.

It is not a de Polignac number, because 100121000211 - 2²⁵ = 100087445779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100121000193 and 100121000202.

It is not an unprimeable number, because it can be changed into a prime (100121000201) 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, 206010046 + ... + 206010531.

Almost surely, 2^100121000211 is an apocalyptic number.

100121000211 is a deficient number, since it is larger than the sum of its proper divisors (49854490181).

100121000211 is an frugal number, since it uses more digits than its factorization.

100121000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412020592 (or 412020580 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100121000211 its reverse (112000121001), we get a palindrome (212121121212).

The spelling of 100121000211 in words is "one hundred billion, one hundred twenty-one million, two hundred eleven", and thus it is an aban number.