210021000209998 has 16 divisors (see below), whose sum is σ = 319110967397376. Its totient is φ = 103652930973240.

The previous prime is 210021000209953. The next prime is 210021000210001. The reversal of 210021000209998 is 899902000120012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563120238 + ... + 563493073.

It is an arithmetic number, because the mean of its divisors is an integer number (19944435462336).

Almost surely, 2^{210021000209998} is an apocalyptic number.

210021000209998 is a deficient number, since it is larger than the sum of its proper divisors (109089967187378).

210021000209998 is a wasteful number, since it uses less digits than its factorization.

210021000209998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126614519.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 210021000209998 in words is "two hundred ten trillion, twenty-one billion, two hundred nine thousand, nine hundred ninety-eight".