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22122103213 = 717414534147
BaseRepresentation
bin10100100110100101…
…001000000110101101
32010002201122021121001
4110212211020012231
5330301224300323
614055053240301
71412130526510
oct244645100655
963081567531
1022122103213
119422394631
124354793091
132117234302
1410dc086d77
158971ec3ad
hex5269481ad

22122103213 has 16 divisors (see below), whose sum is σ = 27422527104. Its totient is φ = 17411120640.

The previous prime is 22122103189. The next prime is 22122103253. The reversal of 22122103213 is 31230122122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22122103213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122103253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2262195 + ... + 2271952.

It is an arithmetic number, because the mean of its divisors is an integer number (1713907944).

Almost surely, 222122103213 is an apocalyptic number.

It is an amenable number.

22122103213 is a deficient number, since it is larger than the sum of its proper divisors (5300423891).

22122103213 is a wasteful number, since it uses less digits than its factorization.

22122103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534212.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22122103213 its reverse (31230122122), we get a palindrome (53352225335).

The spelling of 22122103213 in words is "twenty-two billion, one hundred twenty-two million, one hundred three thousand, two hundred thirteen".

Divisors: 1 7 17 41 119 287 697 4879 4534147 31739029 77080499 185900027 539563493 1301300189 3160300459 22122103213