12200210121 has 16 divisors (see below), whose sum is σ = 17747690688. Its totient is φ = 7393262400.

The previous prime is 12200210117. The next prime is 12200210153. The reversal of 12200210121 is 12101200221.

It is not a de Polignac number, because 12200210121 - 2² = 12200210117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12200210097 and 12200210106.

It is not an unprimeable number, because it can be changed into a prime (12200210101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456295 + ... + 482291.

It is an arithmetic number, because the mean of its divisors is an integer number (1109230668).

Almost surely, 2^12200210121 is an apocalyptic number.

12200210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12200210121 is a deficient number, since it is larger than the sum of its proper divisors (5547480567).

12200210121 is a wasteful number, since it uses less digits than its factorization.

12200210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40232.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12200210121 its reverse (12101200221), we get a palindrome (24301410342).

The spelling of 12200210121 in words is "twelve billion, two hundred million, two hundred ten thousand, one hundred twenty-one".