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1020110112212 = 221735692590769
BaseRepresentation
bin11101101100000110100…
…11010000010111010100
310121112002020010222021212
432312003103100113110
5113203141142042322
62100344312000552
7133462164612542
oct16660323202724
93545066128255
101020110112212
11363698622944
12145854990158
1375271717919
14375331d2d92
151b806ed30e2
hexed834d05d4

1020110112212 has 24 divisors (see below), whose sum is σ = 1798667980200. Its totient is φ = 506215341056.

The previous prime is 1020110112187. The next prime is 1020110112283. The reversal of 1020110112212 is 2122110110201.

It can be written as a sum of positive squares in 4 ways, for example, as 95427859396 + 924682252816 = 308914^2 + 961604^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 901637 + ... + 1689132.

It is an arithmetic number, because the mean of its divisors is an integer number (74944499175).

Almost surely, 21020110112212 is an apocalyptic number.

It is an amenable number.

1020110112212 is a deficient number, since it is larger than the sum of its proper divisors (778557867988).

1020110112212 is a wasteful number, since it uses less digits than its factorization.

1020110112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591515 (or 2591513 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1020110112212 its reverse (2122110110201), we get a palindrome (3142220222413).

The spelling of 1020110112212 in words is "one trillion, twenty billion, one hundred ten million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 173 346 569 692 1138 2276 98437 196874 393748 2590769 5181538 10363076 448203037 896406074 1474147561 1792812148 2948295122 5896590244 255027528053 510055056106 1020110112212