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122300330021 = 239171511351
BaseRepresentation
bin111000111100110101…
…0101111000000100101
3102200200022122111001122
41301321222233000211
54000432341030041
6132103424303325
711556500436632
oct1617152570045
9380608574048
10122300330021
114795a391111
121b852171b45
13b6c09467ac
145cc2a5d189
1532abddec4b
hex1c79aaf025

122300330021 has 4 divisors (see below), whose sum is σ = 122301080544. Its totient is φ = 122299579500.

The previous prime is 122300330017. The next prime is 122300330027. The reversal of 122300330021 is 120033003221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 122300330021 - 22 = 122300330017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122300330027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16505 + ... + 494846.

It is an arithmetic number, because the mean of its divisors is an integer number (30575270136).

Almost surely, 2122300330021 is an apocalyptic number.

It is an amenable number.

122300330021 is a deficient number, since it is larger than the sum of its proper divisors (750523).

122300330021 is an equidigital number, since it uses as much as digits as its factorization.

122300330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750522.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 122300330021 its reverse (120033003221), we get a palindrome (242333333242).

The spelling of 122300330021 in words is "one hundred twenty-two billion, three hundred million, three hundred thirty thousand, twenty-one".

Divisors: 1 239171 511351 122300330021