102001220101 has 8 divisors (see below), whose sum is σ = 113160060000. Its totient is φ = 91156713840.

The previous prime is 102001220033. The next prime is 102001220143. The reversal of 102001220101 is 101022100201.

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

It is a cyclic number.

It is not a de Polignac number, because 102001220101 - 2¹³ = 102001211909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001220701) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 78582726 + ... + 78584023.

It is an arithmetic number, because the mean of its divisors is an integer number (14145007500).

Almost surely, 2^102001220101 is an apocalyptic number.

102001220101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102001220101 is a deficient number, since it is larger than the sum of its proper divisors (11158839899).

102001220101 is a wasteful number, since it uses less digits than its factorization.

102001220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157166819.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102001220101 its reverse (101022100201), we get a palindrome (203023320302).

The spelling of 102001220101 in words is "one hundred two billion, one million, two hundred twenty thousand, one hundred one".