102010202101 has 4 divisors (see below), whose sum is σ = 103020204204. Its totient is φ = 101000200000.

The previous prime is 102010202053. The next prime is 102010202131. The reversal of 102010202101 is 101202010201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101202010201 = 101 ⋅1002000101.

It can be written as a sum of positive squares in 2 ways, for example, as 54377576100 + 47632626001 = 233190^2 + 218249^2 .

It is a cyclic number.

It is not a de Polignac number, because 102010202101 - 2¹⁷ = 102010071029 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 (102010202131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505000900 + ... + 505001101.

It is an arithmetic number, because the mean of its divisors is an integer number (25755051051).

Almost surely, 2^102010202101 is an apocalyptic number.

It is an amenable number.

102010202101 is a deficient number, since it is larger than the sum of its proper divisors (1010002103).

102010202101 is a wasteful number, since it uses less digits than its factorization.

102010202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010002102.

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

Adding to 102010202101 its reverse (101202010201), we get a palindrome (203212212302).

The spelling of 102010202101 in words is "one hundred two billion, ten million, two hundred two thousand, one hundred one".