12221110012120 has 32 divisors (see below), whose sum is σ = 27501796602000. Its totient is φ = 4887679724928.

The previous prime is 12221110012093. The next prime is 12221110012141. The reversal of 12221110012120 is 2121001112221.

It is a junction number, because it is equal to n+sod(n) for n = 12221110012094 and 12221110012103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23624670 + ... + 24136429.

Almost surely, 2^{12221110012120} is an apocalyptic number.

12221110012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221110012120 is an abundant number, since it is smaller than the sum of its proper divisors (15280686589880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221110012120 is a wasteful number, since it uses less digits than its factorization.

12221110012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47767507 (or 47767503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221110012120 its reverse (2121001112221), we get a palindrome (14342111124341).

The spelling of 12221110012120 in words is "twelve trillion, two hundred twenty-one billion, one hundred ten million, twelve thousand, one hundred twenty".