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2002220201 = 2939681259
BaseRepresentation
bin111011101010111…
…0111010010101001
312011112112022202202
41313111313102221
513100032021301
6530402305545
7100421406452
oct16725672251
95145468682
102002220201
11938223743
1247a6582b5
1325ba73aa7
1414dcb6129
15baba066b
hex775774a9

2002220201 has 4 divisors (see below), whose sum is σ = 2002904400. Its totient is φ = 2001536004.

The previous prime is 2002220153. The next prime is 2002220239. The reversal of 2002220201 is 1020222002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1020222002 = 2510111001.

It is a cyclic number.

It is not a de Polignac number, because 2002220201 - 226 = 1935111337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002226201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337691 + ... + 343568.

It is an arithmetic number, because the mean of its divisors is an integer number (500726100).

Almost surely, 22002220201 is an apocalyptic number.

It is an amenable number.

2002220201 is a deficient number, since it is larger than the sum of its proper divisors (684199).

2002220201 is an equidigital number, since it uses as much as digits as its factorization.

2002220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684198.

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

The square root of 2002220201 is about 44746.1752667197. The cubic root of 2002220201 is about 1260.3870904826.

Adding to 2002220201 its reverse (1020222002), we get a palindrome (3022442203).

The spelling of 2002220201 in words is "two billion, two million, two hundred twenty thousand, two hundred one".

Divisors: 1 2939 681259 2002220201