221012022002012 has 12 divisors (see below), whose sum is σ = 386784860342496. Its totient is φ = 110502061904160.

The previous prime is 221012022001987. The next prime is 221012022002071. The reversal of 221012022002012 is 210200220210122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 987148289 + ... + 987372152.

It is an arithmetic number, because the mean of its divisors is an integer number (32232071695208).

Almost surely, 2^{221012022002012} is an apocalyptic number.

It is an amenable number.

221012022002012 is a deficient number, since it is larger than the sum of its proper divisors (165772838340484).

221012022002012 is a wasteful number, since it uses less digits than its factorization.

221012022002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974548428 (or 1974548426 counting only the distinct ones).

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

Adding to 221012022002012 its reverse (210200220210122), we get a palindrome (431212242212134).

The spelling of 221012022002012 in words is "two hundred twenty-one trillion, twelve billion, twenty-two million, two thousand, twelve".