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22111200000001 = 720183156505121
BaseRepresentation
bin1010000011100001010100…
…01110001011100000000001
32220021210212112201122112101
411001300222032023200001
510344232214200000001
6115005424533030401
74441324101645460
oct501605216134001
986253775648471
1022111200000001
117055341a64772
122591370185401
13c45100839478
1456628b4209d7
1528526a496a01
hex141c2a38b801

22111200000001 has 8 divisors (see below), whose sum is σ = 25271195059584. Its totient is φ = 18951517991040.

The previous prime is 22111199999989. The next prime is 22111200000007. The reversal of 22111200000001 is 10000000211122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22111200000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111200000007) 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, 78111280 + ... + 78393841.

It is an arithmetic number, because the mean of its divisors is an integer number (3158899382448).

Almost surely, 222111200000001 is an apocalyptic number.

It is an amenable number.

22111200000001 is a deficient number, since it is larger than the sum of its proper divisors (3159995059583).

22111200000001 is a wasteful number, since it uses less digits than its factorization.

22111200000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156525311.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22111200000001 its reverse (10000000211122), we get a palindrome (32111200211123).

The spelling of 22111200000001 in words is "twenty-two trillion, one hundred eleven billion, two hundred million, one", and thus it is an aban number.

Divisors: 1 7 20183 141281 156505121 1095535847 3158742857143 22111200000001