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122120204441231 = 213564157181991
BaseRepresentation
bin11011110001000101010011…
…011001111101011010001111
3121000101120121000111012001102
4123301011103121331122033
5112001304134314104411
61111421125240133315
734502615336450213
oct3361052331753217
9530346530435042
10122120204441231
1135a02984815907
121184386946723b
13531ab69329039
142222914082943
15e1b96051dd3b
hex6f115367d68f

122120204441231 has 4 divisors (see below), whose sum is σ = 122120263758864. Its totient is φ = 122120145123600.

The previous prime is 122120204441203. The next prime is 122120204441239. The reversal of 122120204441231 is 132144402021221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122120204441231 - 230 = 122119130699407 is a prime.

It is a super-2 number, since 2×1221202044412312 (a number of 29 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 = 122120204441194 and 122120204441203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120204441239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26455355 + ... + 30726636.

It is an arithmetic number, because the mean of its divisors is an integer number (30530065939716).

Almost surely, 2122120204441231 is an apocalyptic number.

122120204441231 is a deficient number, since it is larger than the sum of its proper divisors (59317633).

122120204441231 is an equidigital number, since it uses as much as digits as its factorization.

122120204441231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59317632.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 122120204441231 its reverse (132144402021221), we get a palindrome (254264606462452).

The spelling of 122120204441231 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred four million, four hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 2135641 57181991 122120204441231