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1202202000001 = 7872115271681
BaseRepresentation
bin10001011111101000110…
…100101011101010000001
311020221002112011022010001
4101133220310223222001
5124144102203000001
62320141201040001
7152566454252062
oct21375064535201
94227075138101
101202202000001
1142393a762302
12174bb3026001
13894a08697a2
1442288b66569
15214131a0001
hex117e8d2ba81

1202202000001 has 4 divisors (see below), whose sum is σ = 1202217350404. Its totient is φ = 1202186649600.

The previous prime is 1202201999993. The next prime is 1202202000007. The reversal of 1202202000001 is 1000002022021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 894204749376 + 307997250625 = 945624^2 + 554975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202202000001 - 23 = 1202201999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202202000007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7557120 + ... + 7714561.

It is an arithmetic number, because the mean of its divisors is an integer number (300554337601).

Almost surely, 21202202000001 is an apocalyptic number.

It is an amenable number.

1202202000001 is a deficient number, since it is larger than the sum of its proper divisors (15350403).

1202202000001 is an equidigital number, since it uses as much as digits as its factorization.

1202202000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15350402.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1202202000001 its reverse (1000002022021), we get a palindrome (2202204022022).

The spelling of 1202202000001 in words is "one trillion, two hundred two billion, two hundred two million, one", and thus it is an aban number.

Divisors: 1 78721 15271681 1202202000001