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112201020021 = 3432459353711
BaseRepresentation
bin110100001111110110…
…0111011001001110101
3101201121111000101020010
41220133230323021311
53314241430120041
6123313333130433
711051305635306
oct1503754731165
9351544011203
10112201020021
1143647607022
12198b3a89a19
13a7714c790c
1456056487ad
152dba466a16
hex1a1fb3b275

112201020021 has 16 divisors (see below), whose sum is σ = 153143147520. Its totient is φ = 73031211120.

The previous prime is 112201019989. The next prime is 112201020121. The reversal of 112201020021 is 120020102211.

It is not a de Polignac number, because 112201020021 - 25 = 112201019989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112201019979 and 112201020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112201020121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140356 + ... + 494066.

It is an arithmetic number, because the mean of its divisors is an integer number (9571446720).

Almost surely, 2112201020021 is an apocalyptic number.

It is an amenable number.

112201020021 is a deficient number, since it is larger than the sum of its proper divisors (40942127499).

112201020021 is a wasteful number, since it uses less digits than its factorization.

112201020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356216.

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

Adding to 112201020021 its reverse (120020102211), we get a palindrome (232221122232).

The spelling of 112201020021 in words is "one hundred twelve billion, two hundred one million, twenty thousand, twenty-one".

Divisors: 1 3 43 129 2459 7377 105737 317211 353711 1061133 15209573 45628719 869775349 2609326047 37400340007 112201020021