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2200022001 = 321109220421
BaseRepresentation
bin1000001100100001…
…1010101111110001
312200022201200211100
42003020122233301
514001201201001
61002150035013
7105342610212
oct20310325761
95608650740
102200022001
11a29945101
12514948a69
13290a3b688
1416c285409
15cd223586
hex8321abf1

2200022001 has 12 divisors (see below), whose sum is σ = 3180689460. Its totient is φ = 1465352160.

The previous prime is 2200021979. The next prime is 2200022009. The reversal of 2200022001 is 1002200022.

It can be written as a sum of positive squares in 2 ways, for example, as 75272976 + 2124749025 = 8676^2 + 46095^2 .

It is not a de Polignac number, because 2200022001 - 26 = 2200021937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2200022009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100230 + ... + 120191.

It is an arithmetic number, because the mean of its divisors is an integer number (265057455).

Almost surely, 22200022001 is an apocalyptic number.

It is an amenable number.

2200022001 is a deficient number, since it is larger than the sum of its proper divisors (980667459).

2200022001 is a wasteful number, since it uses less digits than its factorization.

2200022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221536 (or 221533 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2200022001 is about 46904.3921290960. The cubic root of 2200022001 is about 1300.5957823388.

Adding to 2200022001 its reverse (1002200022), we get a palindrome (3202222023).

The spelling of 2200022001 in words is "two billion, two hundred million, twenty-two thousand, one".

Divisors: 1 3 9 1109 3327 9981 220421 661263 1983789 244446889 733340667 2200022001