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31222212201301 = 112383399673019
BaseRepresentation
bin1110001100101011111001…
…10111100000101101010101
311002112210222122120121101211
413012111330313200231111
513043021042310420201
6150223141500221421
76401505344603512
oct706257467405525
9132483878517354
1031222212201301
119a482a190a800
1236030a783a871
13145631b815a24
1479d23d8d2309
15392264a5c651
hex1c657cde0b55

31222212201301 has 12 divisors (see below), whose sum is σ = 34318770444000. Its totient is φ = 28383713068040.

The previous prime is 31222212201293. The next prime is 31222212201311. The reversal of 31222212201301 is 10310221222213.

It is not a de Polignac number, because 31222212201301 - 23 = 31222212201293 is a prime.

It is a super-2 number, since 2×312222122013012 (a number of 28 digits) contains 22 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 (31222212201311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46054770 + ... + 46727788.

It is an arithmetic number, because the mean of its divisors is an integer number (2859897537000).

Almost surely, 231222212201301 is an apocalyptic number.

It is an amenable number.

31222212201301 is a deficient number, since it is larger than the sum of its proper divisors (3096558242699).

31222212201301 is a wasteful number, since it uses less digits than its factorization.

31222212201301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056440 (or 1056429 counting only the distinct ones).

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

Adding to 31222212201301 its reverse (10310221222213), we get a palindrome (41532433423514).

The spelling of 31222212201301 in words is "thirty-one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred one thousand, three hundred one".

Divisors: 1 11 121 383399 673019 4217389 7403209 46391279 81435299 258034811581 2838382927391 31222212201301