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BaseRepresentation
bin100000000010000001110…
…111010010011110010001
321210102200112220222012102
4200002001313102132101
5242031030203310001
64403115050210145
7315013560241301
oct40020167223621
97712615828172
102201202010001
11779585170985
122b6736123955
1312c7598cc867
1478778465601
153c3d1c37e6b
hex20081dd2791

2201202010001 has 4 divisors (see below), whose sum is σ = 2204532119604. Its totient is φ = 2197871900400.

The previous prime is 2201202009997. The next prime is 2201202010013. The reversal of 2201202010001 is 1000102021022.

It is a happy number.

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 1427250744976 + 773951265025 = 1194676^2 + 879745^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201202010001 - 22 = 2201202009997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201202010031) 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, 1665053810 + ... + 1665055131.

It is an arithmetic number, because the mean of its divisors is an integer number (551133029901).

Almost surely, 22201202010001 is an apocalyptic number.

It is an amenable number.

2201202010001 is a deficient number, since it is larger than the sum of its proper divisors (3330109603).

2201202010001 is an equidigital number, since it uses as much as digits as its factorization.

2201202010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330109602.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2201202010001 its reverse (1000102021022), we get a palindrome (3201304031023).

The spelling of 2201202010001 in words is "two trillion, two hundred one billion, two hundred two million, ten thousand, one".

Divisors: 1 661 3330108941 2201202010001