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122133223231 = 438273434471
BaseRepresentation
bin111000110111110110…
…1010001011100111111
3102200020200012120122021
41301233231101130333
54000112101120411
6132035054501011
711552401161055
oct1615755213477
9380220176567
10122133223231
1147884025328
121b806204767
13b695138336
145ca87a01d5
15329c3d1a71
hex1c6fb5173f

122133223231 has 8 divisors (see below), whose sum is σ = 125124683904. Its totient is φ = 119148633240.

The previous prime is 122133223189. The next prime is 122133223241. The reversal of 122133223231 is 132322331221.

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 122133223231 - 211 = 122133221183 is a prime.

It is a super-2 number, since 2×1221332232312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122133223196 and 122133223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133223241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681675 + ... + 1752796.

It is an arithmetic number, because the mean of its divisors is an integer number (15640585488).

Almost surely, 2122133223231 is an apocalyptic number.

122133223231 is a deficient number, since it is larger than the sum of its proper divisors (2991460673).

122133223231 is an equidigital number, since it uses as much as digits as its factorization.

122133223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435341.

The product of its digits is 2592, while the sum is 25.

Adding to 122133223231 its reverse (132322331221), we get a palindrome (254455554452).

The spelling of 122133223231 in words is "one hundred twenty-two billion, one hundred thirty-three million, two hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 43 827 35561 3434471 147682253 2840307517 122133223231