101021201998 has 8 divisors (see below), whose sum is σ = 151627774680. Its totient is φ = 50478610440.

The previous prime is 101021201989. The next prime is 101021202013. The reversal of 101021201998 is 899102120101.

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

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, 15991333 + ... + 15997648.

It is an arithmetic number, because the mean of its divisors is an integer number (18953471835).

Almost surely, 2^101021201998 is an apocalyptic number.

101021201998 is a deficient number, since it is larger than the sum of its proper divisors (50606572682).

101021201998 is a wasteful number, since it uses less digits than its factorization.

101021201998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31990562.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 101021201998 in words is "one hundred one billion, twenty-one million, two hundred one thousand, nine hundred ninety-eight".