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122221230231 = 3203272004251
BaseRepresentation
bin111000111010011110…
…0111111100010010111
3102200110210210210112210
41301310330333202113
54000302113331411
6132051521044503
711554520213202
oct1616474774227
9380423723483
10122221230231
1147919775291
121b82b786733
13b6aa440099
145cb634c939
1532a4eb7ca6
hex1c74f3f897

122221230231 has 8 divisors (see below), whose sum is σ = 162969738624. Its totient is φ = 81476771000.

The previous prime is 122221230223. The next prime is 122221230247. The reversal of 122221230231 is 132032122221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122221230231 - 23 = 122221230223 is a prime.

It is a super-2 number, since 2×1222212302312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122221230198 and 122221230207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941145 + ... + 1063106.

It is an arithmetic number, because the mean of its divisors is an integer number (20371217328).

Almost surely, 2122221230231 is an apocalyptic number.

122221230231 is a deficient number, since it is larger than the sum of its proper divisors (40748508393).

122221230231 is a wasteful number, since it uses less digits than its factorization.

122221230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024581.

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

Adding to 122221230231 its reverse (132032122221), we get a palindrome (254253352452).

The spelling of 122221230231 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 20327 60981 2004251 6012753 40740410077 122221230231