102120201101 has 8 divisors (see below), whose sum is σ = 108184185144. Its totient is φ = 96062540800.

The previous prime is 102120201097. The next prime is 102120201103. The reversal of 102120201101 is 101102021201.

It can be written as a sum of positive squares in 4 ways, for example, as 10463244100 + 91656957001 = 102290^2 + 302749^2 .

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 102120201101 - 2² = 102120201097 is a prime.

It is a super-2 number, since 2×102120201101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120201103) 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, 1547660 + ... + 1612293.

It is an arithmetic number, because the mean of its divisors is an integer number (13523023143).

Almost surely, 2^102120201101 is an apocalyptic number.

It is an amenable number.

102120201101 is a deficient number, since it is larger than the sum of its proper divisors (6063984043).

102120201101 is a wasteful number, since it uses less digits than its factorization.

102120201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161871.

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

Adding to 102120201101 its reverse (101102021201), we get a palindrome (203222222302).

The spelling of 102120201101 in words is "one hundred two billion, one hundred twenty million, two hundred one thousand, one hundred one".