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102222212222 = 21350322393491
BaseRepresentation
bin101111100110011101…
…0110010110001111110
3100202212001010102100002
41133030322302301332
53133322341242342
6114543224434302
710246106316224
oct1371472626176
9322761112302
10102222212222
113a396857029
121798a018992
13984101a410
144d3a240b14
1529d4392d32
hex17cceb2c7e

102222212222 has 32 divisors (see below), whose sum is σ = 165577789440. Its totient is φ = 47051174880.

The previous prime is 102222212203. The next prime is 102222212251. The reversal of 102222212222 is 222212222201.

It is a junction number, because it is equal to n+sod(n) for n = 102222212194 and 102222212203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29279897 + ... + 29283387.

It is an arithmetic number, because the mean of its divisors is an integer number (5174305920).

Almost surely, 2102222212222 is an apocalyptic number.

102222212222 is a deficient number, since it is larger than the sum of its proper divisors (63355577218).

102222212222 is a wasteful number, since it uses less digits than its factorization.

102222212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102222212222 its reverse (222212222201), we get a palindrome (324434434423).

The spelling of 102222212222 in words is "one hundred two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 13 26 503 1006 2239 3491 4478 6539 6982 13078 29107 45383 58214 90766 1126217 1755973 2252434 3511946 7816349 14640821 15632698 22827649 29281642 45655298 101612537 203225074 3931623547 7863247094 51111106111 102222212222