102021212110101 has 8 divisors (see below), whose sum is σ = 143187666119520. Its totient is φ = 64434449753712.

The previous prime is 102021212110061. The next prime is 102021212110123. The reversal of 102021212110101 is 101011212120201.

It is a happy number.

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

It is not a de Polignac number, because 102021212110101 - 2²¹ = 102021210012949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021212110151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894922913190 + ... + 894922913303.

It is an arithmetic number, because the mean of its divisors is an integer number (17898458264940).

Almost surely, 2^{102021212110101} is an apocalyptic number.

It is an amenable number.

102021212110101 is a deficient number, since it is larger than the sum of its proper divisors (41166454009419).

102021212110101 is a wasteful number, since it uses less digits than its factorization.

102021212110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789845826515.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102021212110101 its reverse (101011212120201), we get a palindrome (203032424230302).

The spelling of 102021212110101 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred ten thousand, one hundred one".