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2222000002001 = 13612802017657
BaseRepresentation
bin100000010101011001100…
…001010101001111010001
321212102101000000102200102
4200111121201111033101
5242401124000031001
64420434523302145
7316351142246423
oct40253141251721
97772330012612
102222000002001
1178738808a11a
122ba77b37a955
131316c27063c0
147978c712813
153cbeca80e6b
hex205598553d1

2222000002001 has 8 divisors (see below), whose sum is σ = 2432151327144. Its totient is φ = 2017452712320.

The previous prime is 2222000001961. The next prime is 2222000002009. The reversal of 2222000002001 is 1002000002222.

It can be written as a sum of positive squares in 4 ways, for example, as 101889278401 + 2120110723600 = 319201^2 + 1456060^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2222000002001 - 210 = 2222000000977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222000002009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1401008036 + ... + 1401009621.

It is an arithmetic number, because the mean of its divisors is an integer number (304018915893).

Almost surely, 22222000002001 is an apocalyptic number.

It is an amenable number.

2222000002001 is a deficient number, since it is larger than the sum of its proper divisors (210151325143).

2222000002001 is a wasteful number, since it uses less digits than its factorization.

2222000002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802017731.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 2222000002001 its reverse (1002000002222), we get a palindrome (3224000004223).

The spelling of 2222000002001 in words is "two trillion, two hundred twenty-two billion, two thousand, one".

Divisors: 1 13 61 793 2802017657 36426229541 170923077077 2222000002001