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2221231120213 = 7712144560979
BaseRepresentation
bin100000010100101011101…
…100010001111101010101
321212100101102020012011011
4200110223230101331111
5242343040131321323
64420230335412221
7316323114666520
oct40245354217525
97770342205134
102221231120213
11787023072926
122ba5a5984071
131315cc32a471
1479718567bb7
153cba530420d
hex2052bb11f55

2221231120213 has 8 divisors (see below), whose sum is σ = 2538906396480. Its totient is φ = 1903644980160.

The previous prime is 2221231120201. The next prime is 2221231120237. The reversal of 2221231120213 is 3120211321222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-2221231120213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221231120313) 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, 22230643 + ... + 22330336.

It is an arithmetic number, because the mean of its divisors is an integer number (317363299560).

Almost surely, 22221231120213 is an apocalyptic number.

It is an amenable number.

2221231120213 is a deficient number, since it is larger than the sum of its proper divisors (317675276267).

2221231120213 is an equidigital number, since it uses as much as digits as its factorization.

2221231120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44568107.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2221231120213 its reverse (3120211321222), we get a palindrome (5341442441435).

The spelling of 2221231120213 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred twenty thousand, two hundred thirteen".

Divisors: 1 7 7121 49847 44560979 311926853 317318731459 2221231120213