102101022101 has 4 divisors (see below), whose sum is σ = 109954946892. Its totient is φ = 94247097312.

The previous prime is 102101022097. The next prime is 102101022103. The reversal of 102101022101 is 101220101201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38155762225 + 63945259876 = 195335^2 + 252874^2 .

It is a cyclic number.

It is not a de Polignac number, because 102101022101 - 2² = 102101022097 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 (102101022103) 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, 3926962376 + ... + 3926962401.

It is an arithmetic number, because the mean of its divisors is an integer number (27488736723).

Almost surely, 2^102101022101 is an apocalyptic number.

It is an amenable number.

102101022101 is a deficient number, since it is larger than the sum of its proper divisors (7853924791).

102101022101 is an equidigital number, since it uses as much as digits as its factorization.

102101022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7853924790.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102101022101 its reverse (101220101201), we get a palindrome (203321123302).

The spelling of 102101022101 in words is "one hundred two billion, one hundred one million, twenty-two thousand, one hundred one".