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2122221322 = 213607134471
BaseRepresentation
bin111111001111110…
…1000011100001010
312110220100000100201
41332133220130022
513321242040242
6550330322414
7103406404114
oct17637503412
95426300321
102122221322
11999a36321
124b288940a
1327a89b380
14161bd23b4
15c64a64b7
hex7e7e870a

2122221322 has 16 divisors (see below), whose sum is σ = 3433876992. Its totient is φ = 977865840.

The previous prime is 2122221307. The next prime is 2122221329. The reversal of 2122221322 is 2231222212.

It is a self number, because there is not a number n which added to its sum of digits gives 2122221322.

It is not an unprimeable number, because it can be changed into a prime (2122221329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51454 + ... + 83017.

It is an arithmetic number, because the mean of its divisors is an integer number (214617312).

Almost surely, 22122221322 is an apocalyptic number.

2122221322 is a deficient number, since it is larger than the sum of its proper divisors (1311655670).

2122221322 is a wasteful number, since it uses less digits than its factorization.

2122221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135093.

The product of its digits is 384, while the sum is 19.

The square root of 2122221322 is about 46067.5734329474. The cubic root of 2122221322 is about 1285.0801772862.

Adding to 2122221322 its reverse (2231222212), we get a palindrome (4353443534).

The spelling of 2122221322 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, three hundred twenty-two".

Divisors: 1 2 13 26 607 1214 7891 15782 134471 268942 1748123 3496246 81623897 163247794 1061110661 2122221322