100211939 has 2 divisors, whose sum is σ = 100211940. Its totient is φ = 100211938.

The previous prime is 100211927. The next prime is 100211941. The reversal of 100211939 is 939112001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100211939 - 2²⁴ = 83434723 is a prime.

It is a Sophie Germain prime.

Together with 100211941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100231939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105969 + 50105970.

It is an arithmetic number, because the mean of its divisors is an integer number (50105970).

Almost surely, 2^100211939 is an apocalyptic number.

100211939 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211939 is an equidigital number, since it uses as much as digits as its factorization.

100211939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 100211939 is about 10010.5913411746. The cubic root of 100211939 is about 464.4865632083.

The spelling of 100211939 in words is "one hundred million, two hundred eleven thousand, nine hundred thirty-nine".