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122123221143331 = 997122490693223
BaseRepresentation
bin11011110001001000000111…
…001101110000111100100011
3121000101212101020221112100211
4123301020013031300330203
5112001331324103041311
61111422344442354551
734503053160135112
oct3361100715607443
9530355336845324
10122123221143331
1135a04192653841
121184436b7bba57
13531b22a30a875
142222b1c995c79
15e1ba8a2b1821
hex6f1207370f23

122123221143331 has 4 divisors (see below), whose sum is σ = 122245711837552. Its totient is φ = 122000730449112.

The previous prime is 122123221143293. The next prime is 122123221143349. The reversal of 122123221143331 is 133341122321221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122123221143331 is a prime.

It is a super-2 number, since 2×1221232211433312 (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 = 122123221143293 and 122123221143302.

It is not an unprimeable number, because it can be changed into a prime (122123221143731) 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 3 ways as a sum of consecutive naturals, for example, 61245345615 + ... + 61245347608.

It is an arithmetic number, because the mean of its divisors is an integer number (30561427959388).

Almost surely, 2122123221143331 is an apocalyptic number.

122123221143331 is a deficient number, since it is larger than the sum of its proper divisors (122490694221).

122123221143331 is an equidigital number, since it uses as much as digits as its factorization.

122123221143331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122490694220.

The product of its digits is 10368, while the sum is 31.

Adding to 122123221143331 its reverse (133341122321221), we get a palindrome (255464343464552).

The spelling of 122123221143331 in words is "one hundred twenty-two trillion, one hundred twenty-three billion, two hundred twenty-one million, one hundred forty-three thousand, three hundred thirty-one".

Divisors: 1 997 122490693223 122123221143331