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122010000121 = 265459459619
BaseRepresentation
bin111000110100001011…
…1001101101011111001
3102122221002100012022101
41301220113031223321
53444334030000441
6132014533423401
711546343614032
oct1615027155371
9378832305271
10122010000121
1147820511a49
121b790a9ab61
13b675753359
145c96285a89
153291691231
hex1c685cdaf9

122010000121 has 4 divisors (see below), whose sum is σ = 122010725200. Its totient is φ = 122009275044.

The previous prime is 122010000097. The next prime is 122010000173. The reversal of 122010000121 is 121000010221.

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 122010000121 - 223 = 122001611513 is a prime.

It is a super-3 number, since 3×1220100001213 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122010000098 and 122010000107.

It is not an unprimeable number, because it can be changed into a prime (122010000181) 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, 35650 + ... + 495268.

It is an arithmetic number, because the mean of its divisors is an integer number (30502681300).

Almost surely, 2122010000121 is an apocalyptic number.

It is an amenable number.

122010000121 is a deficient number, since it is larger than the sum of its proper divisors (725079).

122010000121 is an equidigital number, since it uses as much as digits as its factorization.

122010000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725078.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122010000121 its reverse (121000010221), we get a palindrome (243010010342).

The spelling of 122010000121 in words is "one hundred twenty-two billion, ten million, one hundred twenty-one", and thus it is an aban number.

Divisors: 1 265459 459619 122010000121