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2121211022 = 27316772949
BaseRepresentation
bin111111001101111…
…0001110010001110
312110211102200111012
41332123301302032
513321012223042
6550252525222
7103364665460
oct17633616216
95424380435
102121211022
11999406267
124b2480812
1327a606568
14161a0c130
15c6356e82
hex7e6f1c8e

2121211022 has 32 divisors (see below), whose sum is σ = 3809740800. Its totient is φ = 866622240.

The previous prime is 2121211021. The next prime is 2121211033. The reversal of 2121211022 is 2201121212.

It is a super-3 number, since 3×21212110223 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2121210988 and 2121211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7397 + ... + 65552.

It is an arithmetic number, because the mean of its divisors is an integer number (119054400).

Almost surely, 22121211022 is an apocalyptic number.

2121211022 is a deficient number, since it is larger than the sum of its proper divisors (1688529778).

2121211022 is a wasteful number, since it uses less digits than its factorization.

2121211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73056.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2121211022 is about 46056.6067139124. The cubic root of 2121211022 is about 1284.8762207731.

Adding to 2121211022 its reverse (2201121212), we get a palindrome (4322332234).

The spelling of 2121211022 in words is "two billion, one hundred twenty-one million, two hundred eleven thousand, twenty-two".

Divisors: 1 2 7 14 31 62 67 134 217 434 469 938 2077 4154 14539 29078 72949 145898 510643 1021286 2261419 4522838 4887583 9775166 15829933 31659866 34213081 68426162 151515073 303030146 1060605511 2121211022