110212391 has 2 divisors, whose sum is σ = 110212392. Its totient is φ = 110212390.

The previous prime is 110212373. The next prime is 110212393. The reversal of 110212391 is 193212011.

It is a strong prime.

It is an emirp because it is prime and its reverse (193212011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110212391 - 2¹⁴ = 110196007 is a prime.

It is a super-2 number, since 2×110212391² = 24293542259873762, which contains 22 as substring.

Together with 110212393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110212393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55106195 + 55106196.

It is an arithmetic number, because the mean of its divisors is an integer number (55106196).

Almost surely, 2^110212391 is an apocalyptic number.

110212391 is a deficient number, since it is larger than the sum of its proper divisors (1).

110212391 is an equidigital number, since it uses as much as digits as its factorization.

110212391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 110212391 is about 10498.2089424816. The cubic root of 110212391 is about 479.4501675805.

The spelling of 110212391 in words is "one hundred ten million, two hundred twelve thousand, three hundred ninety-one".