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101212201033 = 1492298213613
BaseRepresentation
bin101111001000010110…
…1111010000001001001
3100200020122121112110021
41132100231322001021
53124240310413113
6114255104420441
710212063341206
oct1362055720111
9320218545407
10101212201033
1139a18715739
1217747917721
13970c9b6568
144c82048cad
15297588548d
hex1790b7a049

101212201033 has 16 divisors (see below), whose sum is σ = 102489426000. Its totient is φ = 99944328960.

The previous prime is 101212201019. The next prime is 101212201043. The reversal of 101212201033 is 330102212101.

It can be written as a sum of positive squares in 8 ways, for example, as 19675111824 + 81537089209 = 140268^2 + 285547^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212201033 - 25 = 101212201001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101212200998 and 101212201016.

It is not an unprimeable number, because it can be changed into a prime (101212201043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28011535 + ... + 28015147.

It is an arithmetic number, because the mean of its divisors is an integer number (6405589125).

Almost surely, 2101212201033 is an apocalyptic number.

It is an amenable number.

101212201033 is a deficient number, since it is larger than the sum of its proper divisors (1277224967).

101212201033 is a wasteful number, since it uses less digits than its factorization.

101212201033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101212201033 its reverse (330102212101), we get a palindrome (431314413134).

The spelling of 101212201033 in words is "one hundred one billion, two hundred twelve million, two hundred one thousand, thirty-three".

Divisors: 1 149 229 821 3613 34121 122329 188009 538337 827377 2966273 28013341 123279173 441974677 679276517 101212201033