212212029 has 4 divisors (see below), whose sum is σ = 282949376. Its totient is φ = 141474684.

The previous prime is 212211997. The next prime is 212212051. The reversal of 212212029 is 920212212.

It is a happy number.

212212029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212212029 - 2⁵ = 212211997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212211996 and 212212014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212069) 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, 35368669 + ... + 35368674.

It is an arithmetic number, because the mean of its divisors is an integer number (70737344).

Almost surely, 2^212212029 is an apocalyptic number.

It is an amenable number.

212212029 is a deficient number, since it is larger than the sum of its proper divisors (70737347).

212212029 is an equidigital number, since it uses as much as digits as its factorization.

212212029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70737346.

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

The square root of 212212029 is about 14567.4990646988. The cubic root of 212212029 is about 596.4719144609.

The spelling of 212212029 in words is "two hundred twelve million, two hundred twelve thousand, twenty-nine".