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100010222221 = 7131099013431
BaseRepresentation
bin101110100100100010…
…0101110001010001101
3100120010212212200111111
41131021010232022031
53114310104102341
6113535530052021
710140226601620
oct1351104561215
9316125780444
10100010222221
1139461188218
121747127a011
13957a97b4b0
144baa561db7
1529050a8681
hex174912e28d

100010222221 has 8 divisors (see below), whose sum is σ = 123089504384. Its totient is φ = 79128966960.

The previous prime is 100010222219. The next prime is 100010222281. The reversal of 100010222221 is 122222010001.

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 not a de Polignac number, because 100010222221 - 21 = 100010222219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100010222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549506625 + ... + 549506806.

It is an arithmetic number, because the mean of its divisors is an integer number (15386188048).

Almost surely, 2100010222221 is an apocalyptic number.

It is an amenable number.

100010222221 is a deficient number, since it is larger than the sum of its proper divisors (23079282163).

100010222221 is a wasteful number, since it uses less digits than its factorization.

100010222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099013451.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100010222221 its reverse (122222010001), we get a palindrome (222232232222).

The spelling of 100010222221 in words is "one hundred billion, ten million, two hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 7 13 91 1099013431 7693094017 14287174603 100010222221