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2102210122 = 21955321319
BaseRepresentation
bin111110101001101…
…0010111001001010
312102111200100011011
41331103102321022
513301131210442
6544333354134
7103044330325
oct17523227112
95374610134
102102210122
11989708641
124a803894a
132766b2b1c
1415d2a37bc
15c4852117
hex7d4d2e4a

2102210122 has 8 divisors (see below), whose sum is σ = 3319279200. Its totient is φ = 995783724.

The previous prime is 2102210119. The next prime is 2102210129. The reversal of 2102210122 is 2210122012.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2102210129) 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 3 ways as a sum of consecutive naturals, for example, 27660622 + ... + 27660697.

It is an arithmetic number, because the mean of its divisors is an integer number (414909900).

Almost surely, 22102210122 is an apocalyptic number.

2102210122 is a deficient number, since it is larger than the sum of its proper divisors (1217069078).

2102210122 is a wasteful number, since it uses less digits than its factorization.

2102210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55321340.

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

The square root of 2102210122 is about 45849.8650161590. The cubic root of 2102210122 is about 1281.0282513179.

Adding to 2102210122 its reverse (2210122012), we get a palindrome (4312332134).

The spelling of 2102210122 in words is "two billion, one hundred two million, two hundred ten thousand, one hundred twenty-two".

Divisors: 1 2 19 38 55321319 110642638 1051105061 2102210122