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12022201102221 = 321335800122469
BaseRepresentation
bin1010111011110010001100…
…0001101010111110001101
31120120022101212100221122200
42232330203001222332031
53033432431440232341
641322531204432113
72350401231166032
oct256744301527615
946508355327580
1012022201102221
113915650116572
121421b969a8639
136928c50c376b
142d7c4034b389
1515cad2024db6
hexaef2306af8d

12022201102221 has 6 divisors (see below), whose sum is σ = 17365401592110. Its totient is φ = 8014800734808.

The previous prime is 12022201102217. The next prime is 12022201102349. The reversal of 12022201102221 is 12220110222021.

It is a happy number.

12022201102221 is a `hidden beast` number, since 120 + 2 + 220 + 1 + 102 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6370222644900 + 5651978457321 = 2523930^2 + 2377389^2 .

It is not a de Polignac number, because 12022201102221 - 22 = 12022201102217 is a prime.

It is a super-2 number, since 2×120222011022212 (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12022201102194 and 12022201102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022201102621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 667900061226 + ... + 667900061243.

It is an arithmetic number, because the mean of its divisors is an integer number (2894233598685).

Almost surely, 212022201102221 is an apocalyptic number.

It is an amenable number.

12022201102221 is a deficient number, since it is larger than the sum of its proper divisors (5343200489889).

12022201102221 is a wasteful number, since it uses less digits than its factorization.

12022201102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335800122475 (or 1335800122472 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12022201102221 its reverse (12220110222021), we get a palindrome (24242311324242).

The spelling of 12022201102221 in words is "twelve trillion, twenty-two billion, two hundred one million, one hundred two thousand, two hundred twenty-one".

Divisors: 1 3 9 1335800122469 4007400367407 12022201102221