712021212 has 96 divisors (see below), whose sum is σ = 2201472000. Its totient is φ = 194584896.

The previous prime is 712021207. The next prime is 712021231. The reversal of 712021212 is 212120217.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3087 + ... + 37862.

It is an arithmetic number, because the mean of its divisors is an integer number (22932000).

Almost surely, 2^712021212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712021212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100736000).

712021212 is an abundant number, since it is smaller than the sum of its proper divisors (1489450788).

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

712021212 is a wasteful number, since it uses less digits than its factorization.

712021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40992 (or 40984 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 712021212 is about 26683.7256019470. The cubic root of 712021212 is about 892.9578866480.

Adding to 712021212 its reverse (212120217), we get a palindrome (924141429).

The spelling of 712021212 in words is "seven hundred twelve million, twenty-one thousand, two hundred twelve".