221110002220120 has 32 divisors (see below), whose sum is σ = 535766543842320. Its totient is φ = 81640616204160.

The previous prime is 221110002220117. The next prime is 221110002220123. The reversal of 221110002220120 is 21022200011122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221110002220117) and next prime (221110002220123).

It is a junction number, because it is equal to n+sod(n) for n = 221110002220094 and 221110002220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110002220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212605770846 + ... + 212605771885.

Almost surely, 2^{221110002220120} is an apocalyptic number.

221110002220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221110002220120 is an abundant number, since it is smaller than the sum of its proper divisors (314656541622200).

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

221110002220120 is a wasteful number, since it uses less digits than its factorization.

221110002220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425211542755 (or 425211542751 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221110002220120 its reverse (21022200011122), we get a palindrome (242132202231242).

The spelling of 221110002220120 in words is "two hundred twenty-one trillion, one hundred ten billion, two million, two hundred twenty thousand, one hundred twenty".