221022110012 has 48 divisors (see below), whose sum is σ = 427435008000. Its totient is φ = 99159802560.

The previous prime is 221022109999. The next prime is 221022110069. The reversal of 221022110012 is 210011220122.

It is a super-2 number, since 2×221022110012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12549989 + ... + 12567587.

It is an arithmetic number, because the mean of its divisors is an integer number (8904896000).

Almost surely, 2^221022110012 is an apocalyptic number.

221022110012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221022110012 is a deficient number, since it is larger than the sum of its proper divisors (206412897988).

221022110012 is a wasteful number, since it uses less digits than its factorization.

221022110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21306 (or 21304 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221022110012 its reverse (210011220122), we get a palindrome (431033330134).

The spelling of 221022110012 in words is "two hundred twenty-one billion, twenty-two million, one hundred ten thousand, twelve".