221020110022112 has 24 divisors (see below), whose sum is σ = 436670915269176. Its totient is φ = 110119560112512.

The previous prime is 221020110022067. The next prime is 221020110022121. The reversal of 221020110022112 is 211220011020122.

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, 12202956383 + ... + 12202974494.

It is an arithmetic number, because the mean of its divisors is an integer number (18194621469549).

Almost surely, 2^{221020110022112} is an apocalyptic number.

It is an amenable number.

221020110022112 is a deficient number, since it is larger than the sum of its proper divisors (215650805247064).

221020110022112 is a wasteful number, since it uses less digits than its factorization.

221020110022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24405931170 (or 24405931162 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221020110022112 its reverse (211220011020122), we get a palindrome (432240121042234).

The spelling of 221020110022112 in words is "two hundred twenty-one trillion, twenty billion, one hundred ten million, twenty-two thousand, one hundred twelve".