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230210022121 = 400157538121
BaseRepresentation
bin1101011001100110010…
…1100010101011101001
3211000012201202211001121
43112121211202223221
512232432231201441
6253431303415241
722426550621152
oct3263145425351
9730181684047
10230210022121
11896a4612a32
1238748a54521
131892a06a201
14b1dc39a929
155ec5736dd1
hex3599962ae9

230210022121 has 4 divisors (see below), whose sum is σ = 230267564244. Its totient is φ = 230152480000.

The previous prime is 230210022089. The next prime is 230210022139. The reversal of 230210022121 is 121220012032.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65260322521 + 164949699600 = 255461^2 + 406140^2 .

It is a cyclic number.

It is not a de Polignac number, because 230210022121 - 25 = 230210022089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230210022095 and 230210022104.

It is not an unprimeable number, because it can be changed into a prime (230210022151) 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, 28765060 + ... + 28773061.

It is an arithmetic number, because the mean of its divisors is an integer number (57566891061).

Almost surely, 2230210022121 is an apocalyptic number.

It is an amenable number.

230210022121 is a deficient number, since it is larger than the sum of its proper divisors (57542123).

230210022121 is an equidigital number, since it uses as much as digits as its factorization.

230210022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57542122.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 230210022121 its reverse (121220012032), we get a palindrome (351430034153).

The spelling of 230210022121 in words is "two hundred thirty billion, two hundred ten million, twenty-two thousand, one hundred twenty-one".

Divisors: 1 4001 57538121 230210022121