212021120219 has 8 divisors (see below), whose sum is σ = 219442636560. Its totient is φ = 204606966816.

The previous prime is 212021120093. The next prime is 212021120249. The reversal of 212021120219 is 912021120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212021120219 - 2⁸ = 212021119963 is a prime.

It is a super-2 number, since 2×212021120219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021120194 and 212021120203.

It is not an unprimeable number, because it can be changed into a prime (212021120249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1782104 + ... + 1897349.

It is an arithmetic number, because the mean of its divisors is an integer number (27430329570).

Almost surely, 2^212021120219 is an apocalyptic number.

212021120219 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

212021120219 is a deficient number, since it is larger than the sum of its proper divisors (7421516341).

212021120219 is a wasteful number, since it uses less digits than its factorization.

212021120219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681469.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 212021120219 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, two hundred nineteen".