1110220020 has 480 divisors, whose sum is σ = 4548918528. Its totient is φ = 219967488.

The previous prime is 1110219997. The next prime is 1110220049. The reversal of 1110220020 is 200220111.

It is a super-3 number, since 3×1110220020³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1110219984 and 1110220011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2505919 + ... + 2506361.

Almost surely, 2^1110220020 is an apocalyptic number.

1110220020 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 1110220020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274459264).

1110220020 is an abundant number, since it is smaller than the sum of its proper divisors (3438698508).

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

1110220020 is a wasteful number, since it uses less digits than its factorization.

1110220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1110220020 is about 33319.9642856951. The cubic root of 1110220020 is about 1035.4672118733.

Adding to 1110220020 its reverse (200220111), we get a palindrome (1310440131).

Subtracting from 1110220020 its reverse (200220111), we obtain a palindrome (909999909).

The spelling of 1110220020 in words is "one billion, one hundred ten million, two hundred twenty thousand, twenty".