47021212 has 12 divisors (see below), whose sum is σ = 94042480. Its totient is φ = 20151936.

The previous prime is 47021173. The next prime is 47021213. The reversal of 47021212 is 21212074.

It is a happy number.

47021212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 47021212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47021213) 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, 839637 + ... + 839692.

Almost surely, 2^47021212 is an apocalyptic number.

It is an amenable number.

47021212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47021212 is a wasteful number, since it uses less digits than its factorization.

47021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679340 (or 1679338 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 47021212 is about 6857.2014699876. The cubic root of 47021212 is about 360.9368909256.

Adding to 47021212 its reverse (21212074), we get a palindrome (68233286).

The spelling of 47021212 in words is "forty-seven million, twenty-one thousand, two hundred twelve".