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12221200210202 = 279665091162991
BaseRepresentation
bin1011000111010111100001…
…0011000001100100011010
31121021100001110022001102022
42301311320103001210122
53100213004223211302
641554201502134442
72400644506535354
oct261657023014432
947240043261368
1012221200210202
113991a88a04785
121454673281422
136a85b9c52729
1430371b52c0d4
15162d7c68d8a2
hexb1d784c191a

12221200210202 has 16 divisors (see below), whose sum is σ = 18564143500800. Its totient is φ = 6033154835760.

The previous prime is 12221200210201. The next prime is 12221200210231. The reversal of 12221200210202 is 20201200212221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12221200210201) 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, 9926927 + ... + 11089917.

It is an arithmetic number, because the mean of its divisors is an integer number (1160258968800).

Almost surely, 212221200210202 is an apocalyptic number.

12221200210202 is a deficient number, since it is larger than the sum of its proper divisors (6342943290598).

12221200210202 is a wasteful number, since it uses less digits than its factorization.

12221200210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229581.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12221200210202 its reverse (20201200212221), we get a palindrome (32422400422423).

The spelling of 12221200210202 in words is "twelve trillion, two hundred twenty-one billion, two hundred million, two hundred ten thousand, two hundred two".

Divisors: 1 2 79 158 66509 133018 1162991 2325982 5254211 10508422 91876289 183752578 77349368419 154698736838 6110600105101 12221200210202