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23122121100001 = 721185994988741
BaseRepresentation
bin1010100000111100010011…
…10100001000101011100001
310000212110020101010102210121
411100132021310020223201
511012313101000200001
6121102053352400241
74604342500345300
oct520361164105341
9100773211112717
1023122121100001
117405044628740
12271527b6a6081
13cb9539595b51
1459d18c07a437
152a16d58b46a1
hex150789d08ae1

23122121100001 has 24 divisors (see below), whose sum is σ = 29345775940800. Its totient is φ = 18015138338400.

The previous prime is 23122121099977. The next prime is 23122121100053. The reversal of 23122121100001 is 10000112122132.

It is not a de Polignac number, because 23122121100001 - 25 = 23122121099969 is a prime.

It is a super-2 number, since 2×231221211000012 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23122121100601) 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 23 ways as a sum of consecutive naturals, for example, 2140491 + ... + 7129231.

It is an arithmetic number, because the mean of its divisors is an integer number (1222740664200).

Almost surely, 223122121100001 is an apocalyptic number.

It is an amenable number.

23122121100001 is a deficient number, since it is larger than the sum of its proper divisors (6223654840799).

23122121100001 is a wasteful number, since it uses less digits than its factorization.

23122121100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997365 (or 4997358 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 23122121100001 its reverse (10000112122132), we get a palindrome (33122233222133).

The spelling of 23122121100001 in words is "twenty-three trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, one".

Divisors: 1 7 11 49 77 539 8599 60193 94589 421351 662123 4634861 4988741 34921187 54876151 244448309 384133057 2688931399 42898183859 300287287013 471880022449 2102011009091 3303160157143 23122121100001