212021003214 has 24 divisors (see below), whose sum is σ = 459567437160. Its totient is φ = 70644652848.

The previous prime is 212021003209. The next prime is 212021003219. The reversal of 212021003214 is 412300120212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212021003209) and next prime (212021003219).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021003219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2372824 + ... + 2460555.

It is an arithmetic number, because the mean of its divisors is an integer number (19148643215).

Almost surely, 2^212021003214 is an apocalyptic number.

212021003214 is an abundant number, since it is smaller than the sum of its proper divisors (247546433946).

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

212021003214 is a wasteful number, since it uses less digits than its factorization.

212021003214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835824 (or 4835821 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212021003214 its reverse (412300120212), we get a palindrome (624321123426).

The spelling of 212021003214 in words is "two hundred twelve billion, twenty-one million, three thousand, two hundred fourteen".