220221012112012 has 24 divisors (see below), whose sum is σ = 387517940941040. Its totient is φ = 109501606572480.

The previous prime is 220221012112007. The next prime is 220221012112033. The reversal of 220221012112012 is 210211210122022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167907718 + ... + 169214194.

Almost surely, 2^{220221012112012} is an apocalyptic number.

It is an amenable number.

220221012112012 is a deficient number, since it is larger than the sum of its proper divisors (167296928829028).

220221012112012 is a wasteful number, since it uses less digits than its factorization.

220221012112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539481 (or 1539479 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220221012112012 its reverse (210211210122022), we get a palindrome (430432222234034).

The spelling of 220221012112012 in words is "two hundred twenty trillion, two hundred twenty-one billion, twelve million, one hundred twelve thousand, twelve".