211220201210219 has 4 divisors (see below), whose sum is σ = 218033756088000. Its totient is φ = 204406646332440.

The previous prime is 211220201210191. The next prime is 211220201210261. The reversal of 211220201210219 is 912012102022112.

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 211220201210219 - 2¹⁶ = 211220201144683 is a prime.

It is a super-2 number, since 2×211220201210219² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211220201210279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3406777438844 + ... + 3406777438905.

It is an arithmetic number, because the mean of its divisors is an integer number (54508439022000).

Almost surely, 2^{211220201210219} is an apocalyptic number.

211220201210219 is a deficient number, since it is larger than the sum of its proper divisors (6813554877781).

211220201210219 is an equidigital number, since it uses as much as digits as its factorization.

211220201210219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6813554877780.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 211220201210219 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred one million, two hundred ten thousand, two hundred nineteen".