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2221202002 = 21669665429
BaseRepresentation
bin1000010001100100…
…1101101001010010
312201210120202022211
42010121031221102
514022111431002
61004224022334
7106020622405
oct20431155122
95653522284
102221202002
11a3a8a0a38
1251ba619aa
13295245c16
14170dd9d3c
15d0008dd7
hex8464da52

2221202002 has 8 divisors (see below), whose sum is σ = 3333804300. Its totient is φ = 1109933904.

The previous prime is 2221201951. The next prime is 2221202029. The reversal of 2221202002 is 2002021222.

It can be written as a sum of positive squares in 2 ways, for example, as 2212855681 + 8346321 = 47041^2 + 2889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329377 + ... + 336052.

Almost surely, 22221202002 is an apocalyptic number.

2221202002 is a deficient number, since it is larger than the sum of its proper divisors (1112602298).

2221202002 is a wasteful number, since it uses less digits than its factorization.

2221202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667100.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2221202002 is about 47129.6297672706. The cubic root of 2221202002 is about 1304.7561484642.

Adding to 2221202002 its reverse (2002021222), we get a palindrome (4223223224).

The spelling of 2221202002 in words is "two billion, two hundred twenty-one million, two hundred two thousand, two".

Divisors: 1 2 1669 3338 665429 1330858 1110601001 2221202002