110221221012 has 72 divisors (see below), whose sum is σ = 312229963584. Its totient is φ = 29639313408.

The previous prime is 110221220999. The next prime is 110221221031. The reversal of 110221221012 is 210122122011.

It is a super-2 number, since 2×110221221012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110221220982 and 110221221000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2245893 + ... + 2294444.

It is an arithmetic number, because the mean of its divisors is an integer number (4336527272).

Almost surely, 2^110221221012 is an apocalyptic number.

110221221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

110221221012 is an abundant number, since it is smaller than the sum of its proper divisors (202008742572).

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

110221221012 is a wasteful number, since it uses less digits than its factorization.

110221221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540385 (or 4540366 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 110221221012 its reverse (210122122011), we get a palindrome (320343343023).

Subtracting 110221221012 from its reverse (210122122011), we obtain a palindrome (99900900999).

The spelling of 110221221012 in words is "one hundred ten billion, two hundred twenty-one million, two hundred twenty-one thousand, twelve".