Search a number
-
+
120221112101 = 192376249473
BaseRepresentation
bin110111111110110111…
…1001001011100100101
3102111022102020021021112
41233331233021130211
53432203101041401
6131121231354405
711454122410046
oct1577557113445
9374272207245
10120221112101
1146a927579a2
121b371982a05
13b44bc5402c
145b668628cd
1531d95d03bb
hex1bfdbc9725

120221112101 has 4 divisors (see below), whose sum is σ = 120227380812. Its totient is φ = 120214843392.

The previous prime is 120221112073. The next prime is 120221112113. The reversal of 120221112101 is 101211122021.

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 58107513025 + 62113599076 = 241055^2 + 249226^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221112101 - 214 = 120221095717 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 (120221112191) 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, 3105500 + ... + 3143973.

It is an arithmetic number, because the mean of its divisors is an integer number (30056845203).

Almost surely, 2120221112101 is an apocalyptic number.

It is an amenable number.

120221112101 is a deficient number, since it is larger than the sum of its proper divisors (6268711).

120221112101 is an equidigital number, since it uses as much as digits as its factorization.

120221112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268710.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120221112101 its reverse (101211122021), we get a palindrome (221432234122).

The spelling of 120221112101 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred twelve thousand, one hundred one".

Divisors: 1 19237 6249473 120221112101