212022219 has 8 divisors (see below), whose sum is σ = 292444560. Its totient is φ = 136474016.

The previous prime is 212022191. The next prime is 212022227. The reversal of 212022219 is 912220212.

It is a happy number.

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 212022219 - 2⁷ = 212022091 is a prime.

It is a super-2 number, since 2×212022219² = 89906842699367922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212022195 and 212022204.

It is not an unprimeable number, because it can be changed into a prime (212022229) 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, 1218432 + ... + 1218605.

It is an arithmetic number, because the mean of its divisors is an integer number (36555570).

Almost surely, 2^212022219 is an apocalyptic number.

212022219 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

212022219 is a deficient number, since it is larger than the sum of its proper divisors (80422341).

212022219 is a wasteful number, since it uses less digits than its factorization.

212022219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437069.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 212022219 is about 14560.9827621627. The cubic root of 212022219 is about 596.2940261695.

The spelling of 212022219 in words is "two hundred twelve million, twenty-two thousand, two hundred nineteen".