212115019516 has 12 divisors (see below), whose sum is σ = 371320701640. Its totient is φ = 106023390480.

The previous prime is 212115019489. The next prime is 212115019549. The reversal of 212115019516 is 615910511212.

212115019516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8515830 + ... + 8540701.

Almost surely, 2^212115019516 is an apocalyptic number.

It is an amenable number.

212115019516 is a deficient number, since it is larger than the sum of its proper divisors (159205682124).

212115019516 is a wasteful number, since it uses less digits than its factorization.

212115019516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17059644 (or 17059642 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 34.

The spelling of 212115019516 in words is "two hundred twelve billion, one hundred fifteen million, nineteen thousand, five hundred sixteen".