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2220122002201 = 17891240984909
BaseRepresentation
bin100000010011101001100…
…101010101001100011001
321212020112010020011021021
4200103221211111030121
5242333302213032301
64415524315242441
7316253456436355
oct40235145251431
97766463204237
102220122002201
11786603aa0074
122ba336449421
1313148360650c
1479651134465
153cb3cc6b8a1
hex204e9955319

2220122002201 has 4 divisors (see below), whose sum is σ = 2221362988900. Its totient is φ = 2218881015504.

The previous prime is 2220122002187. The next prime is 2220122002223. The reversal of 2220122002201 is 1022002210222.

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 1928223846025 + 291898156176 = 1388605^2 + 540276^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220122002201 - 25 = 2220122002169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220122002001) 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, 620490666 + ... + 620494243.

It is an arithmetic number, because the mean of its divisors is an integer number (555340747225).

Almost surely, 22220122002201 is an apocalyptic number.

It is an amenable number.

2220122002201 is a deficient number, since it is larger than the sum of its proper divisors (1240986699).

2220122002201 is a wasteful number, since it uses less digits than its factorization.

2220122002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240986698.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2220122002201 its reverse (1022002210222), we get a palindrome (3242124212423).

The spelling of 2220122002201 in words is "two trillion, two hundred twenty billion, one hundred twenty-two million, two thousand, two hundred one".

Divisors: 1 1789 1240984909 2220122002201