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1201012212 = 223100084351
BaseRepresentation
bin100011110010101…
…1111110111110100
310002200220202000210
41013211133313310
54424424342322
6315101505420
741522302221
oct10745376764
93080822023
101201012212
11566a38284
12296272270
13161a8a11a
14b5714948
157068a70c
hex4795fdf4

1201012212 has 12 divisors (see below), whose sum is σ = 2802361856. Its totient is φ = 400337400.

The previous prime is 1201012207. The next prime is 1201012223. The reversal of 1201012212 is 2122101021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 100084351 = 1201012212 / (1 + 2 + 0 + 1 + 0 + 1 + 2 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50042164 + ... + 50042187.

Almost surely, 21201012212 is an apocalyptic number.

1201012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201012212 is an abundant number, since it is smaller than the sum of its proper divisors (1601349644).

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

1201012212 is a wasteful number, since it uses less digits than its factorization.

1201012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100084358 (or 100084356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1201012212 is about 34655.6230935183. The cubic root of 1201012212 is about 1062.9572729217.

Adding to 1201012212 its reverse (2122101021), we get a palindrome (3323113233).

The spelling of 1201012212 in words is "one billion, two hundred one million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 100084351 200168702 300253053 400337404 600506106 1201012212