12211021212122 has 8 divisors (see below), whose sum is σ = 18316789579200. Its totient is φ = 6105424685724.

The previous prime is 12211021212001. The next prime is 12211021212163. The reversal of 12211021212122 is 22121212011221.

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

It is a junction number, because it is equal to n+sod(n) for n = 12211021212094 and 12211021212103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42782372 + ... + 43066847.

It is an arithmetic number, because the mean of its divisors is an integer number (2289598697400).

Almost surely, 2^{12211021212122} is an apocalyptic number.

12211021212122 is a deficient number, since it is larger than the sum of its proper divisors (6105768367078).

12211021212122 is an equidigital number, since it uses as much as digits as its factorization.

12211021212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85920340.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12211021212122 its reverse (22121212011221), we get a palindrome (34332233223343).

The spelling of 12211021212122 in words is "twelve trillion, two hundred eleven billion, twenty-one million, two hundred twelve thousand, one hundred twenty-two".