212211996 has 24 divisors (see below), whose sum is σ = 495406464. Its totient is φ = 70702320.

The previous prime is 212211953. The next prime is 212211997. The reversal of 212211996 is 699112212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211997) 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, 35161 + ... + 40751.

It is an arithmetic number, because the mean of its divisors is an integer number (20641936).

Almost surely, 2^212211996 is an apocalyptic number.

It is an amenable number.

212211996 is an abundant number, since it is smaller than the sum of its proper divisors (283194468).

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

212211996 is a wasteful number, since it uses less digits than its factorization.

212211996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8761 (or 8759 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 212211996 is about 14567.4979320404. The cubic root of 212211996 is about 596.4718835429.

The spelling of 212211996 in words is "two hundred twelve million, two hundred eleven thousand, nine hundred ninety-six".