221122002020012 has 12 divisors (see below), whose sum is σ = 386972674233600. Its totient is φ = 110558380810416.

The previous prime is 221122002020009. The next prime is 221122002020027. The reversal of 221122002020012 is 210020200221122.

It is a happy number.

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, 654860012 + ... + 655197587.

It is an arithmetic number, because the mean of its divisors is an integer number (32247722852800).

Almost surely, 2^{221122002020012} is an apocalyptic number.

It is an amenable number.

221122002020012 is a deficient number, since it is larger than the sum of its proper divisors (165850672213588).

221122002020012 is a wasteful number, since it uses less digits than its factorization.

221122002020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310099800 (or 1310099798 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221122002020012 its reverse (210020200221122), we get a palindrome (431142202241134).

The spelling of 221122002020012 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, two million, twenty thousand, twelve".