102021111002101 has 8 divisors (see below), whose sum is σ = 108582054139224. Its totient is φ = 95522356899840.

The previous prime is 102021111002077. The next prime is 102021111002117. The reversal of 102021111002101 is 101200111120201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 267287966001 + 101753823036100 = 516999^2 + 10087310^2 .

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 102021111002101 - 2⁷ = 102021111001973 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 (102021111002401) 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, 15547255330 + ... + 15547261891.

It is an arithmetic number, because the mean of its divisors is an integer number (13572756767403).

Almost surely, 2^{102021111002101} is an apocalyptic number.

It is an amenable number.

102021111002101 is a deficient number, since it is larger than the sum of its proper divisors (6560943137123).

102021111002101 is a wasteful number, since it uses less digits than its factorization.

102021111002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31094517431.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102021111002101 its reverse (101200111120201), we get a palindrome (203221222122302).

The spelling of 102021111002101 in words is "one hundred two trillion, twenty-one billion, one hundred eleven million, two thousand, one hundred one".