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13222212220032 = 273472577333889
BaseRepresentation
bin1100000001101000100101…
…0000110011010010000000
31201211000211200222220101220
43000122021100303102000
53213113042312020112
644042111143355040
72533162513325364
oct300321120632200
951730750886356
1013222212220032
114238566106632
121596678152a80
1374bb06aa1a4a
14339d5c12b2a4
1517de17ba998c
hexc0689433480

13222212220032 has 256 divisors, whose sum is σ = 36066730636800. Its totient is φ = 4289879605248.

The previous prime is 13222212220031. The next prime is 13222212220037. The reversal of 13222212220032 is 23002221222231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 13222212219984 and 13222212220011.

It is not an unprimeable number, because it can be changed into a prime (13222212220031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3399898344 + ... + 3399902232.

It is an arithmetic number, because the mean of its divisors is an integer number (140885666550).

Almost surely, 213222212220032 is an apocalyptic number.

13222212220032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13222212220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18033365318400).

13222212220032 is an abundant number, since it is smaller than the sum of its proper divisors (22844518416768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13222212220032 is a wasteful number, since it uses less digits than its factorization.

13222212220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943 (or 4931 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13222212220032 its reverse (23002221222231), we get a palindrome (36224433442263).

The spelling of 13222212220032 in words is "thirteen trillion, two hundred twenty-two billion, two hundred twelve million, two hundred twenty thousand, thirty-two".