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11221210220201 = 21181689651019
BaseRepresentation
bin1010001101001010010000…
…1111111100011010101001
31110201201220102201012001222
42203102210033330122221
52432322014304021301
635510541450151425
72235464023060112
oct243224417743251
943651812635058
1011221210220201
1136369856a6513
1213128b4722575
13635203a80187
142ab17656d209
15146d51c5331b
hexa34a43fc6a9

11221210220201 has 8 divisors (see below), whose sum is σ = 11274546645600. Its totient is φ = 11167875260640.

The previous prime is 11221210220173. The next prime is 11221210220219. The reversal of 11221210220201 is 10202201212211.

11221210220201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11221210220201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11221210220201.

It is not an unprimeable number, because it can be changed into a prime (11221210220501) 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, 16910870 + ... + 17561888.

It is an arithmetic number, because the mean of its divisors is an integer number (1409318330700).

Almost surely, 211221210220201 is an apocalyptic number.

It is an amenable number.

11221210220201 is a deficient number, since it is larger than the sum of its proper divisors (53336425399).

11221210220201 is an equidigital number, since it uses as much as digits as its factorization.

11221210220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732919.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11221210220201 its reverse (10202201212211), we get a palindrome (21423411432412).

The spelling of 11221210220201 in words is "eleven trillion, two hundred twenty-one billion, two hundred ten million, two hundred twenty thousand, two hundred one".

Divisors: 1 211 81689 651019 17236379 137365009 53181091091 11221210220201