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132102020221 = 314261355491
BaseRepresentation
bin111101100000111100…
…1001101110001111101
3110121222102020221021121
41323001321031301331
54131021104121341
6140404204430541
712354416434123
oct1730171156175
9417872227247
10132102020221
115102a168026
1221728848451
13c5c351c092
14657271d913
1536826794d1
hex1ec1e4dc7d

132102020221 has 4 divisors (see below), whose sum is σ = 136363375744. Its totient is φ = 127840664700.

The previous prime is 132102020203. The next prime is 132102020249. The reversal of 132102020221 is 122020201231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122020201231 = 175696945199.

It is a cyclic number.

It is not a de Polignac number, because 132102020221 - 215 = 132101987453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132102020195 and 132102020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132102020321) 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, 2130677715 + ... + 2130677776.

It is an arithmetic number, because the mean of its divisors is an integer number (34090843936).

Almost surely, 2132102020221 is an apocalyptic number.

It is an amenable number.

132102020221 is a deficient number, since it is larger than the sum of its proper divisors (4261355523).

132102020221 is an equidigital number, since it uses as much as digits as its factorization.

132102020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261355522.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 132102020221 its reverse (122020201231), we get a palindrome (254122221452).

The spelling of 132102020221 in words is "one hundred thirty-two billion, one hundred two million, twenty thousand, two hundred twenty-one".

Divisors: 1 31 4261355491 132102020221