221122001020012 has 6 divisors (see below), whose sum is σ = 386963501785028. Its totient is φ = 110561000510004.

The previous prime is 221122001019991. The next prime is 221122001020099. The reversal of 221122001020012 is 210020100221122.

It is a happy number.

221122001020012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27640250127498 + ... + 27640250127505.

Almost surely, 2^{221122001020012} is an apocalyptic number.

It is an amenable number.

221122001020012 is a deficient number, since it is larger than the sum of its proper divisors (165841500765016).

221122001020012 is a wasteful number, since it uses less digits than its factorization.

221122001020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55280500255007 (or 55280500255005 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221122001020012 its reverse (210020100221122), we get a palindrome (431142101241134).

The spelling of 221122001020012 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one million, twenty thousand, twelve".