212021000998 has 4 divisors (see below), whose sum is σ = 318031501500. Its totient is φ = 106010500498.

The previous prime is 212021000977. The next prime is 212021001011. The reversal of 212021000998 is 899000120212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 53005250248 + ... + 53005250251.

It is an arithmetic number, because the mean of its divisors is an integer number (79507875375).

Almost surely, 2^212021000998 is an apocalyptic number.

212021000998 is a deficient number, since it is larger than the sum of its proper divisors (106010500502).

212021000998 is a wasteful number, since it uses less digits than its factorization.

212021000998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106010500501.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 212021000998 in words is "two hundred twelve billion, twenty-one million, nine hundred ninety-eight", and thus it is an aban number.