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BaseRepresentation
bin10110110000111100000111…
…101010000011000100111101
3111010111101111200112121122011
4112300330013222003010331
5101110331441420201341
6552534313304251221
730042303454511062
oct2660740752030475
9433441450477564
10100120111100221
11299a0778654563
12b28bb46770b11
1343b339435c394
141aa1ba6bd8c69
15b895493bdb81
hex5b0f07a8313d

100120111100221 has 6 divisors (see below), whose sum is σ = 106355965771130. Its totient is φ = 94230692799936.

The previous prime is 100120111100203. The next prime is 100120111100237. The reversal of 100120111100221 is 122001111021001.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14550303444196 + 85569807656025 = 3814486^2 + 9250395^2 .

It is not a de Polignac number, because 100120111100221 - 233 = 100111521165629 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 (100120111100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173218185006 + ... + 173218185583.

Almost surely, 2100120111100221 is an apocalyptic number.

It is an amenable number.

100120111100221 is a deficient number, since it is larger than the sum of its proper divisors (6235854670909).

100120111100221 is an equidigital number, since it uses as much as digits as its factorization.

100120111100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346436370623 (or 346436370606 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100120111100221 its reverse (122001111021001), we get a palindrome (222121222121222).

The spelling of 100120111100221 in words is "one hundred trillion, one hundred twenty billion, one hundred eleven million, one hundred thousand, two hundred twenty-one".