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22132120210121 = 71930781808359
BaseRepresentation
bin1010000100001000010010…
…01010011100101011001001
32220100210212111210102202102
411002010021022130223021
510400103040233210441
6115023204453443145
74442664366543635
oct502041112345311
986323774712672
1022132120210121
1170631a796a219
12259542a3404b5
13c47085a6571c
145672b3a03dc5
15285a91dd269b
hex14210929cac9

22132120210121 has 4 divisors (see below), whose sum is σ = 22162902019200. Its totient is φ = 22101338401044.

The previous prime is 22132120210073. The next prime is 22132120210157. The reversal of 22132120210121 is 12101202123122.

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.

It is a cyclic number.

It is not a de Polignac number, because 22132120210121 - 234 = 22114940340937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22132120210093 and 22132120210102.

It is not an unprimeable number, because it can be changed into a prime (22132120210721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15390903461 + ... + 15390904898.

It is an arithmetic number, because the mean of its divisors is an integer number (5540725504800).

Almost surely, 222132120210121 is an apocalyptic number.

It is an amenable number.

22132120210121 is a deficient number, since it is larger than the sum of its proper divisors (30781809079).

22132120210121 is an equidigital number, since it uses as much as digits as its factorization.

22132120210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30781809078.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22132120210121 its reverse (12101202123122), we get a palindrome (34233322333243).

The spelling of 22132120210121 in words is "twenty-two trillion, one hundred thirty-two billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 719 30781808359 22132120210121