212020442 has 8 divisors (see below), whose sum is σ = 318130176. Its totient is φ = 105977052.

The previous prime is 212020433. The next prime is 212020483. The reversal of 212020442 is 244020212.

It is a happy number.

212020442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212020442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7628 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (39766272).

Almost surely, 2^212020442 is an apocalyptic number.

212020442 is a deficient number, since it is larger than the sum of its proper divisors (106109734).

212020442 is a wasteful number, since it uses less digits than its factorization.

212020442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33172.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 212020442 is about 14560.9217428019. The cubic root of 212020442 is about 596.2923602790.

Adding to 212020442 its reverse (244020212), we get a palindrome (456040654).

The spelling of 212020442 in words is "two hundred twelve million, twenty thousand, four hundred forty-two".