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10120302221 = 73541925583
BaseRepresentation
bin10010110110011011…
…11000111010001101
3222010022010121202012
421123031320322031
5131211244132341
64352121111005
7505535102201
oct113315707215
928108117665
1010120302221
114323712937
121b65328465
13c538bbb13
146c011ab01
153e37230eb
hex25b378e8d

10120302221 has 8 divisors (see below), whose sum is σ = 10261230720. Its totient is φ = 9979435872.

The previous prime is 10120302211. The next prime is 10120302259. The reversal of 10120302221 is 12220302101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10120302221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120302196 and 10120302205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120302211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382796 + ... + 408378.

It is an arithmetic number, because the mean of its divisors is an integer number (1282653840).

Almost surely, 210120302221 is an apocalyptic number.

It is an amenable number.

10120302221 is a deficient number, since it is larger than the sum of its proper divisors (140928499).

10120302221 is an equidigital number, since it uses as much as digits as its factorization.

10120302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31075.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10120302221 its reverse (12220302101), we get a palindrome (22340604322).

The spelling of 10120302221 in words is "ten billion, one hundred twenty million, three hundred two thousand, two hundred twenty-one".

Divisors: 1 73 5419 25583 395587 1867559 138634277 10120302221