12210012222121 has 8 divisors (see below), whose sum is σ = 13970658774464. Its totient is φ = 10453455442800.

The previous prime is 12210012222113. The next prime is 12210012222137. The reversal of 12210012222121 is 12122221001221.

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 12210012222121 - 2³ = 12210012222113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12210012225121) 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, 1022436855 + ... + 1022448796.

It is an arithmetic number, because the mean of its divisors is an integer number (1746332346808).

Almost surely, 2^{12210012222121} is an apocalyptic number.

It is an amenable number.

12210012222121 is a deficient number, since it is larger than the sum of its proper divisors (1760646552343).

12210012222121 is an equidigital number, since it uses as much as digits as its factorization.

12210012222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044886511.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12210012222121 its reverse (12122221001221), we get a palindrome (24332233223342).

The spelling of 12210012222121 in words is "twelve trillion, two hundred ten billion, twelve million, two hundred twenty-two thousand, one hundred twenty-one".