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20200112202112 = 271011562508679
BaseRepresentation
bin1001001011111001101001…
…00000110010000110000000
32122112010000112212122111221
410211330310200302012000
510121424312210431422
6110543445313044424
74153260416461513
oct445746440620600
978463015778457
1020200112202112
1164889017a4357
122322b00856714
13b36b2992969b
144db9951c8d7a
152506b80c03c7
hex125f34832180

20200112202112 has 32 divisors (see below), whose sum is σ = 40640850766800. Its totient is φ = 10000055539200.

The previous prime is 20200112202089. The next prime is 20200112202157. The reversal of 20200112202112 is 21120221100202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×202001122021122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 781241412 + ... + 781267267.

Almost surely, 220200112202112 is an apocalyptic number.

It is an amenable number.

20200112202112 is an abundant number, since it is smaller than the sum of its proper divisors (20440738564688).

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

20200112202112 is a wasteful number, since it uses less digits than its factorization.

20200112202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562508794 (or 1562508782 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20200112202112 its reverse (21120221100202), we get a palindrome (41320333302314).

The spelling of 20200112202112 in words is "twenty trillion, two hundred billion, one hundred twelve million, two hundred two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 64 101 128 202 404 808 1616 3232 6464 12928 1562508679 3125017358 6250034716 12500069432 25000138864 50000277728 100000555456 157813376579 200001110912 315626753158 631253506316 1262507012632 2525014025264 5050028050528 10100056101056 20200112202112