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2221214013 = 32544945293
BaseRepresentation
bin1000010001100101…
…0000100100111101
312201210121100210200
42010121100210331
514022112322023
61004224154113
7106021002414
oct20431204475
95653540720
102221214013
11a3a8a9a67
1251ba68939
1329524b525
1417100047b
15d000c743
hex8465093d

2221214013 has 12 divisors (see below), whose sum is σ = 3209079900. Its totient is φ = 1480504896.

The previous prime is 2221214011. The next prime is 2221214027. The reversal of 2221214013 is 3104121222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 768232089 + 1452981924 = 27717^2 + 38118^2 .

It is not a de Polignac number, because 2221214013 - 21 = 2221214011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221214011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26395 + ... + 71687.

It is an arithmetic number, because the mean of its divisors is an integer number (267423325).

Almost surely, 22221214013 is an apocalyptic number.

It is an amenable number.

2221214013 is a deficient number, since it is larger than the sum of its proper divisors (987865887).

2221214013 is a wasteful number, since it uses less digits than its factorization.

2221214013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50748 (or 50745 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2221214013 is about 47129.7571922453. The cubic root of 2221214013 is about 1304.7585002536.

Adding to 2221214013 its reverse (3104121222), we get a palindrome (5325335235).

The spelling of 2221214013 in words is "two billion, two hundred twenty-one million, two hundred fourteen thousand, thirteen".

Divisors: 1 3 9 5449 16347 45293 49041 135879 407637 246801557 740404671 2221214013