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12200302121 = 72593167213
BaseRepresentation
bin10110101110011000…
…11101011000101001
31011111021000120012112
423113030131120221
5144441234131441
65334342452105
7611222566640
oct132714353051
934437016175
1012200302121
1151a0830617
122445a34035
1311c57c64a7
1483a47c357
154b61394eb
hex2d731d629

12200302121 has 8 divisors (see below), whose sum is σ = 13943947584. Its totient is φ = 10456842960.

The previous prime is 12200302099. The next prime is 12200302181. The reversal of 12200302121 is 12120300221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12200302121 - 226 = 12133193257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12200302096 and 12200302105.

It is not an unprimeable number, because it can be changed into a prime (12200302181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147911 + ... + 215123.

It is an arithmetic number, because the mean of its divisors is an integer number (1742993448).

Almost surely, 212200302121 is an apocalyptic number.

It is an amenable number.

12200302121 is a deficient number, since it is larger than the sum of its proper divisors (1743645463).

12200302121 is an equidigital number, since it uses as much as digits as its factorization.

12200302121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93151.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12200302121 its reverse (12120300221), we get a palindrome (24320602342).

The spelling of 12200302121 in words is "twelve billion, two hundred million, three hundred two thousand, one hundred twenty-one".

Divisors: 1 7 25931 67213 181517 470491 1742900303 12200302121