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162222020201 = 1618910020509
BaseRepresentation
bin1001011100010100101…
…1111001011001101001
3120111201112100110200102
42113011023321121221
510124212314121301
6202305044515145
714502004264133
oct2270513713151
9514645313612
10162222020201
116288611289a
12275339abab5
13123b370b087
147bcca84053
154346aa8b6b
hex25c52f9669

162222020201 has 4 divisors (see below), whose sum is σ = 162232056900. Its totient is φ = 162211983504.

The previous prime is 162222020189. The next prime is 162222020227. The reversal of 162222020201 is 102020222261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45517795801 + 116704224400 = 213349^2 + 341620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-162222020201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162222020251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4994066 + ... + 5026443.

It is an arithmetic number, because the mean of its divisors is an integer number (40558014225).

Almost surely, 2162222020201 is an apocalyptic number.

It is an amenable number.

162222020201 is a deficient number, since it is larger than the sum of its proper divisors (10036699).

162222020201 is a wasteful number, since it uses less digits than its factorization.

162222020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10036698.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 162222020201 its reverse (102020222261), we get a palindrome (264242242462).

The spelling of 162222020201 in words is "one hundred sixty-two billion, two hundred twenty-two million, twenty thousand, two hundred one".

Divisors: 1 16189 10020509 162222020201