101221209998 has 8 divisors (see below), whose sum is σ = 153335100600. Its totient is φ = 50109509800.

The previous prime is 101221209967. The next prime is 101221210007. The reversal of 101221209998 is 899902122101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250547348 + ... + 250547751.

It is an arithmetic number, because the mean of its divisors is an integer number (19166887575).

Almost surely, 2^101221209998 is an apocalyptic number.

101221209998 is a deficient number, since it is larger than the sum of its proper divisors (52113890602).

101221209998 is a wasteful number, since it uses less digits than its factorization.

101221209998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501095202.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 101221209998 in words is "one hundred one billion, two hundred twenty-one million, two hundred nine thousand, nine hundred ninety-eight".