221022022020012 has 96 divisors (see below), whose sum is σ = 577339534195200. Its totient is φ = 73120591252800.

The previous prime is 221022022020001. The next prime is 221022022020073. The reversal of 221022022020012 is 210020220220122.

221022022020012 is a `hidden beast` number, since 2 + 2 + 10 + 220 + 220 + 200 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5327539 + ... + 21689322.

It is an arithmetic number, because the mean of its divisors is an integer number (6013953481200).

Almost surely, 2^{221022022020012} is an apocalyptic number.

It is an amenable number.

221022022020012 is an abundant number, since it is smaller than the sum of its proper divisors (356317512175188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221022022020012 is a wasteful number, since it uses less digits than its factorization.

221022022020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27017444 (or 27017436 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 221022022020012 its reverse (210020220220122), we get a palindrome (431042242240134).

The spelling of 221022022020012 in words is "two hundred twenty-one trillion, twenty-two billion, twenty-two million, twenty thousand, twelve".