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10110221197 = 10399730723
BaseRepresentation
bin10010110101001110…
…11011101110001101
3222002121011110011221
421122213123232031
5131201204034242
64351121043341
7505353314356
oct113247335615
928077143157
1010110221197
114318a5790a
121b61a86551
13c5179c40b
146bca54d2d
153e28d1167
hex25a9dbb8d

10110221197 has 4 divisors (see below), whose sum is σ = 10119952960. Its totient is φ = 10100489436.

The previous prime is 10110221171. The next prime is 10110221203. The reversal of 10110221197 is 79112201101.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10110221197 is a prime.

It is a super-2 number, since 2×101102211972 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10110221137) 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, 4864323 + ... + 4866400.

It is an arithmetic number, because the mean of its divisors is an integer number (2529988240).

Almost surely, 210110221197 is an apocalyptic number.

It is an amenable number.

10110221197 is a deficient number, since it is larger than the sum of its proper divisors (9731763).

10110221197 is an equidigital number, since it uses as much as digits as its factorization.

10110221197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9731762.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 10110221197 its reverse (79112201101), we get a palindrome (89222422298).

The spelling of 10110221197 in words is "ten billion, one hundred ten million, two hundred twenty-one thousand, one hundred ninety-seven".

Divisors: 1 1039 9730723 10110221197