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12212020221303 = 3714091798922943
BaseRepresentation
bin1011000110110101010100…
…1000001001010101110111
31121020110100200112022001110
42301231111020021111313
53100040204134040203
641550042531130103
72400201150113340
oct261552510112567
947213320468043
1012212020221303
1139890a80591a1
121452930a43933
136a7786103636
143030ca2630c7
151629e17abd03
hexb1b55209577

12212020221303 has 32 divisors (see below), whose sum is σ = 18623846707200. Its totient is φ = 6972653039616.

The previous prime is 12212020221259. The next prime is 12212020221307. The reversal of 12212020221303 is 30312202021221.

12212020221303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12212020221303 - 212 = 12212020217207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12212020221303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212020221307) 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, 532265050 + ... + 532287992.

It is an arithmetic number, because the mean of its divisors is an integer number (581995209600).

Almost surely, 212212020221303 is an apocalyptic number.

12212020221303 is a deficient number, since it is larger than the sum of its proper divisors (6411826485897).

12212020221303 is a wasteful number, since it uses less digits than its factorization.

12212020221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42351.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12212020221303 its reverse (30312202021221), we get a palindrome (42524222242524).

The spelling of 12212020221303 in words is "twelve trillion, two hundred twelve billion, twenty million, two hundred twenty-one thousand, three hundred three".

Divisors: 1 3 7 21 1409 4227 9863 17989 22943 29589 53967 68829 125923 160601 377769 481803 25346501 32326687 76039503 96980061 177425507 226286809 412721627 532276521 678860427 1238164881 2889051389 8667154167 581524772443 1744574317329 4070673407101 12212020221303