12221101012112 has 20 divisors (see below), whose sum is σ = 23781782271420. Its totient is φ = 6083866877568.

The previous prime is 12221101012031. The next prime is 12221101012147. The reversal of 12221101012112 is 21121010112221.

It can be written as a sum of positive squares in 2 ways, for example, as 10185902039296 + 2035198972816 = 3191536^2 + 1426604^2 .

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, 1667723003 + ... + 1667730330.

It is an arithmetic number, because the mean of its divisors is an integer number (1189089113571).

Almost surely, 2^{12221101012112} is an apocalyptic number.

It is an amenable number.

12221101012112 is a deficient number, since it is larger than the sum of its proper divisors (11560681259308).

12221101012112 is a wasteful number, since it uses less digits than its factorization.

12221101012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335453570 (or 3335453564 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12221101012112 its reverse (21121010112221), we get a palindrome (33342111124333).

The spelling of 12221101012112 in words is "twelve trillion, two hundred twenty-one billion, one hundred one million, twelve thousand, one hundred twelve".