111002021112220 has 192 divisors, whose sum is σ = 286668801699840. Its totient is φ = 35239503495168.

The previous prime is 111002021112181. The next prime is 111002021112239. The reversal of 111002021112220 is 22211120200111.

It is a junction number, because it is equal to n+sod(n) for n = 111002021112194 and 111002021112203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46036492 + ... + 48387628.

It is an arithmetic number, because the mean of its divisors is an integer number (1493066675520).

Almost surely, 2^{111002021112220} is an apocalyptic number.

111002021112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111002021112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143334400849920).

111002021112220 is an abundant number, since it is smaller than the sum of its proper divisors (175666780587620).

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

111002021112220 is a wasteful number, since it uses less digits than its factorization.

111002021112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351492 (or 2351490 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111002021112220 its reverse (22211120200111), we get a palindrome (133213141312331).

The spelling of 111002021112220 in words is "one hundred eleven trillion, two billion, twenty-one million, one hundred twelve thousand, two hundred twenty".