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2222000000001 = 321735474094411
BaseRepresentation
bin100000010101011001100…
…001010100110000000001
321212102101000000022221100
4200111121201110300001
5242401124000000001
64420434523245013
7316351142240535
oct40253141246001
97772330008840
102222000000001
11787388088671
122ba77b379769
131316c2705512
147978c711bc5
153cbeca80586
hex20559854c01

2222000000001 has 24 divisors (see below), whose sum is σ = 3399311863584. Its totient is φ = 1393802674560.

The previous prime is 2221999999963. The next prime is 2222000000021. The reversal of 2222000000001 is 1000000002222.

It is not a de Polignac number, because 2222000000001 - 214 = 2221999983617 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2222000000001.

It is not an unprimeable number, because it can be changed into a prime (2222000000021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1504515 + ... + 2589896.

It is an arithmetic number, because the mean of its divisors is an integer number (141637994316).

Almost surely, 22222000000001 is an apocalyptic number.

It is an amenable number.

2222000000001 is a deficient number, since it is larger than the sum of its proper divisors (1177311863583).

2222000000001 is a wasteful number, since it uses less digits than its factorization.

2222000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097981 (or 4097978 counting only the distinct ones).

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

Adding to 2222000000001 its reverse (1000000002222), we get a palindrome (3222000002223).

The spelling of 2222000000001 in words is "two trillion, two hundred twenty-two billion, one", and thus it is an aban number.

Divisors: 1 3 9 17 51 153 3547 10641 31923 60299 180897 542691 4094411 12283233 36849699 69604987 208814961 626444883 14522875817 43568627451 130705882353 246888888889 740666666667 2222000000001