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1210120202122 = 21362039750223
BaseRepresentation
bin10001100111000000110…
…010001110011110001010
311021200112100122122102021
4101213000302032132022
5124311311232431442
62323531015355054
7153266623000336
oct21470062163612
94250470578367
101210120202122
114272333407a7
12176642982a8a
138a1631700a0
14427da61a7c6
15217283dde67
hex119c0c8e78a

1210120202122 has 16 divisors (see below), whose sum is σ = 1954843672320. Its totient is φ = 558507269232.

The previous prime is 1210120202119. The next prime is 1210120202131. The reversal of 1210120202122 is 2212020210121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210120202096 and 1210120202105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1237903 + ... + 1988125.

It is an arithmetic number, because the mean of its divisors is an integer number (122177729520).

Almost surely, 21210120202122 is an apocalyptic number.

1210120202122 is a deficient number, since it is larger than the sum of its proper divisors (744723470198).

1210120202122 is a wasteful number, since it uses less digits than its factorization.

1210120202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812277.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210120202122 its reverse (2212020210121), we get a palindrome (3422140412243).

The spelling of 1210120202122 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred two thousand, one hundred twenty-two".

Divisors: 1 2 13 26 62039 124078 750223 806507 1500446 1613014 9752899 19505798 46543084697 93086169394 605060101061 1210120202122