212022291 has 8 divisors (see below), whose sum is σ = 304442320. Its totient is φ = 130475232.

The previous prime is 212022281. The next prime is 212022301. The reversal of 212022291 is 192220212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212022281) and next prime (212022301).

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

It is not a de Polignac number, because 212022291 - 2⁶ = 212022227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212022241) 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, 2718196 + ... + 2718273.

It is an arithmetic number, because the mean of its divisors is an integer number (38055290).

Almost surely, 2^212022291 is an apocalyptic number.

212022291 is a deficient number, since it is larger than the sum of its proper divisors (92420029).

212022291 is a wasteful number, since it uses less digits than its factorization.

212022291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436485.

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

The square root of 212022291 is about 14560.9852345231. The cubic root of 212022291 is about 596.2940936674.

The spelling of 212022291 in words is "two hundred twelve million, twenty-two thousand, two hundred ninety-one".