1020220110 has 160 divisors (see below), whose sum is σ = 3376562112. Its totient is φ = 215239680.

The previous prime is 1020220109. The next prime is 1020220111. The reversal of 1020220110 is 110220201.

It is an interprime number because it is at equal distance from previous prime (1020220109) and next prime (1020220111).

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 = 1020220092 and 1020220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220111) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 66790 + ... + 80630.

Almost surely, 2^1020220110 is an apocalyptic number.

1020220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020220110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688281056).

1020220110 is an abundant number, since it is smaller than the sum of its proper divisors (2356342002).

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

1020220110 is a wasteful number, since it uses less digits than its factorization.

1020220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13880 (or 13871 counting only the distinct ones).

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

The square root of 1020220110 is about 31940.8846151762. The cubic root of 1020220110 is about 1006.6951121055.

Adding to 1020220110 its reverse (110220201), we get a palindrome (1130440311).

Subtracting from 1020220110 its reverse (110220201), we obtain a palindrome (909999909).

The spelling of 1020220110 in words is "one billion, twenty million, two hundred twenty thousand, one hundred ten".