12120121211122 has 8 divisors (see below), whose sum is σ = 18180208116972. Its totient is φ = 6060051838800.

The previous prime is 12120121211047. The next prime is 12120121211137. The reversal of 12120121211122 is 22111212102121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11636496935361 + 483624275761 = 3411231^2 + 695431^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12120121211122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2492029 + ... + 5518192.

Almost surely, 2^{12120121211122} is an apocalyptic number.

12120121211122 is a deficient number, since it is larger than the sum of its proper divisors (6060086905850).

12120121211122 is an equidigital number, since it uses as much as digits as its factorization.

12120121211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766764.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12120121211122 its reverse (22111212102121), we get a palindrome (34231333313243).

The spelling of 12120121211122 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-one million, two hundred eleven thousand, one hundred twenty-two".