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13013213222221 = 235471034354441
BaseRepresentation
bin1011110101011101111111…
…1100111001010101001101
31201002001101012111202122021
42331113133330321111031
53201202030041102341
643402104305450141
72512113361213222
oct275273774712515
951061335452567
1013013213222221
114167966679163
12156206a940951
137351aa2937c4
1432dbb2c15949
151787846a59d1
hexbd5dff3954d

13013213222221 has 8 divisors (see below), whose sum is σ = 13603829621184. Its totient is φ = 12424665533280.

The previous prime is 13013213222201. The next prime is 13013213222287. The reversal of 13013213222221 is 12222231231031.

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

It is a cyclic number.

It is not a de Polignac number, because 13013213222221 - 29 = 13013213221709 is a prime.

It is a super-3 number, since 3×130132132222213 (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013213222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517164640 + ... + 517189801.

It is an arithmetic number, because the mean of its divisors is an integer number (1700478702648).

Almost surely, 213013213222221 is an apocalyptic number.

It is an amenable number.

13013213222221 is a deficient number, since it is larger than the sum of its proper divisors (590616398963).

13013213222221 is a wasteful number, since it uses less digits than its factorization.

13013213222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034355011.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13013213222221 its reverse (12222231231031), we get a palindrome (25235444453252).

The spelling of 13013213222221 in words is "thirteen trillion, thirteen billion, two hundred thirteen million, two hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 23 547 12581 1034354441 23790152143 565791879227 13013213222221