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12230022202221 = 3831391474123971
BaseRepresentation
bin1011000111111000011000…
…1000010000001101101101
31121022011211021102200101110
42301332012020100031231
53100334041140432341
642002221124102233
72401406231325615
oct261760610201555
947264737380343
1012230022202221
1139957a577397a
121456315834979
136a9394878755
14303d17047a45
151631e6e07216
hexb1f8621036d

12230022202221 has 32 divisors (see below), whose sum is σ = 16623711336960. Its totient is φ = 7996288449600.

The previous prime is 12230022202193. The next prime is 12230022202231. The reversal of 12230022202221 is 12220222003221.

It is not a de Polignac number, because 12230022202221 - 218 = 12230021940077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230022202231) 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, 510188766 + ... + 510212736.

It is an arithmetic number, because the mean of its divisors is an integer number (519490979280).

Almost surely, 212230022202221 is an apocalyptic number.

It is an amenable number.

12230022202221 is a deficient number, since it is larger than the sum of its proper divisors (4393689134739).

12230022202221 is a wasteful number, since it uses less digits than its factorization.

12230022202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38937.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12230022202221 its reverse (12220222003221), we get a palindrome (24450244205442).

The spelling of 12230022202221 in words is "twelve trillion, two hundred thirty billion, twenty-two million, two hundred two thousand, two hundred twenty-one".

Divisors: 1 3 83 139 249 417 11537 14741 23971 34611 44223 71913 1223503 1989593 2048999 3331969 3670509 5968779 6146997 9995907 170066917 276553427 353356511 510200751 829660281 1060069533 29328590413 49116555029 87985771239 147349665087 4076674067407 12230022202221