Search a number
-
+
1020101101212 = 223205103414467
BaseRepresentation
bin11101101100000101100…
…00111000011010011100
310121112001121012011112010
432312002300320122130
5113203131340214322
62100343350511220
7133462025202444
oct16660260703234
93545047164463
101020101101212
11363693528836
12145851965510
137526c8b127b
1437531d29124
151b80630320c
hexed82c3869c

1020101101212 has 24 divisors (see below), whose sum is σ = 2380253250816. Its totient is φ = 340031222128.

The previous prime is 1020101101199. The next prime is 1020101101223. The reversal of 1020101101212 is 2121011010201.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 2254003 + ... + 2668469.

It is an arithmetic number, because the mean of its divisors is an integer number (99177218784).

Almost surely, 21020101101212 is an apocalyptic number.

1020101101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020101101212 is an abundant number, since it is smaller than the sum of its proper divisors (1360152149604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020101101212 is a wasteful number, since it uses less digits than its factorization.

1020101101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619577 (or 619575 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1020101101212 its reverse (2121011010201), we get a palindrome (3141112111413).

The spelling of 1020101101212 in words is "one trillion, twenty billion, one hundred one million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 205103 410206 414467 615309 820412 828934 1230618 1243401 1657868 2461236 2486802 4973604 85008425101 170016850202 255025275303 340033700404 510050550606 1020101101212