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10102322221 = 17595743219
BaseRepresentation
bin10010110100010010…
…10011010000101101
3222002001022010211021
421122021103100231
5131142143302341
64350235454141
7505226215315
oct113211232055
928061263737
1010102322221
114314552232
121b5b2b7351
13c4cc64c74
146bb99a445
153e1d709d1
hex25a25342d

10102322221 has 4 divisors (see below), whose sum is σ = 10108067200. Its totient is φ = 10096577244.

The previous prime is 10102322201. The next prime is 10102322239. The reversal of 10102322221 is 12222320101.

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: 12222320101 = 20176059653.

It is a cyclic number.

It is not a de Polignac number, because 10102322221 - 213 = 10102314029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102322195 and 10102322204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102322201) 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, 2869851 + ... + 2873368.

It is an arithmetic number, because the mean of its divisors is an integer number (2527016800).

Almost surely, 210102322221 is an apocalyptic number.

It is an amenable number.

10102322221 is a deficient number, since it is larger than the sum of its proper divisors (5744979).

10102322221 is an equidigital number, since it uses as much as digits as its factorization.

10102322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744978.

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

Adding to 10102322221 its reverse (12222320101), we get a palindrome (22324642322).

The spelling of 10102322221 in words is "ten billion, one hundred two million, three hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 1759 5743219 10102322221