221020222020112 has 40 divisors (see below), whose sum is σ = 443701453164480. Its totient is φ = 106587302440320.

The previous prime is 221020222020089. The next prime is 221020222020121. The reversal of 221020222020112 is 211020222020122.

It is a self number, because there is not a number n which added to its sum of digits gives 221020222020112.

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, 2208738564 + ... + 2208838627.

It is an arithmetic number, because the mean of its divisors is an integer number (11092536329112).

Almost surely, 2^{221020222020112} is an apocalyptic number.

It is an amenable number.

221020222020112 is an abundant number, since it is smaller than the sum of its proper divisors (222681231144368).

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

221020222020112 is a wasteful number, since it uses less digits than its factorization.

221020222020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417577311 (or 4417577305 counting only the distinct ones).

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

Adding to 221020222020112 its reverse (211020222020122), we get a palindrome (432040444040234).

The spelling of 221020222020112 in words is "two hundred twenty-one trillion, twenty billion, two hundred twenty-two million, twenty thousand, one hundred twelve".