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201031022012 = 22172956338559
BaseRepresentation
bin1011101100111001100…
…0011111010110111100
3201012220012100000210212
42323032120133112330
511243202420201022
6232204040251552
720344510331042
oct2731630372674
9635805300725
10201031022012
1178290853307
1232b64a70bb8
1315c59acb582
149a30dc6392
155368c323e2
hex2ece61f5bc

201031022012 has 12 divisors (see below), whose sum is σ = 372498658560. Its totient is φ = 94602833856.

The previous prime is 201031021993. The next prime is 201031022053. The reversal of 201031022012 is 210220130102.

It is a happy number.

It is a super-2 number, since 2×2010310220122 (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1478169212 + ... + 1478169347.

It is an arithmetic number, because the mean of its divisors is an integer number (31041554880).

Almost surely, 2201031022012 is an apocalyptic number.

It is an amenable number.

201031022012 is a deficient number, since it is larger than the sum of its proper divisors (171467636548).

201031022012 is a wasteful number, since it uses less digits than its factorization.

201031022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956338580 (or 2956338578 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201031022012 its reverse (210220130102), we get a palindrome (411251152114).

The spelling of 201031022012 in words is "two hundred one billion, thirty-one million, twenty-two thousand, twelve".

Divisors: 1 2 4 17 34 68 2956338559 5912677118 11825354236 50257755503 100515511006 201031022012