212021003215 has 32 divisors (see below), whose sum is σ = 297600145920. Its totient is φ = 141973098624.

The previous prime is 212021003209. The next prime is 212021003219. The reversal of 212021003215 is 512300120212.

It is not a de Polignac number, because 212021003215 - 2¹⁹ = 212020478927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212021003192 and 212021003201.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8142597 + ... + 8168593.

It is an arithmetic number, because the mean of its divisors is an integer number (9300004560).

Almost surely, 2^212021003215 is an apocalyptic number.

212021003215 is a deficient number, since it is larger than the sum of its proper divisors (85579142705).

212021003215 is a wasteful number, since it uses less digits than its factorization.

212021003215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31471.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 212021003215 its reverse (512300120212), we get a palindrome (724321123427).

The spelling of 212021003215 in words is "two hundred twelve billion, twenty-one million, three thousand, two hundred fifteen".