211201120019 has 4 divisors (see below), whose sum is σ = 211839190200. Its totient is φ = 210563049840.

The previous prime is 211201120007. The next prime is 211201120027. The reversal of 211201120019 is 910021102112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211201120019 - 2⁴ = 211201120003 is a prime.

It is a super-2 number, since 2×211201120019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211201120069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319034594 + ... + 319035255.

It is an arithmetic number, because the mean of its divisors is an integer number (52959797550).

Almost surely, 2^211201120019 is an apocalyptic number.

211201120019 is a deficient number, since it is larger than the sum of its proper divisors (638070181).

211201120019 is an equidigital number, since it uses as much as digits as its factorization.

211201120019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638070180.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 211201120019 in words is "two hundred eleven billion, two hundred one million, one hundred twenty thousand, nineteen".