221022120202012 has 12 divisors (see below), whose sum is σ = 390543940551856. Its totient is φ = 109438137187200.

The previous prime is 221022120201983. The next prime is 221022120202049. The reversal of 221022120202012 is 210202021220122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268230727989 + ... + 268230728812.

Almost surely, 2^{221022120202012} is an apocalyptic number.

It is an amenable number.

221022120202012 is a deficient number, since it is larger than the sum of its proper divisors (169521820349844).

221022120202012 is a wasteful number, since it uses less digits than its factorization.

221022120202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536461456908 (or 536461456906 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221022120202012 its reverse (210202021220122), we get a palindrome (431224141422134).

The spelling of 221022120202012 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred twenty million, two hundred two thousand, twelve".