110202020020 has 24 divisors (see below), whose sum is σ = 231451522344. Its totient is φ = 44075611776.

The previous prime is 110202020011. The next prime is 110202020069. The reversal of 110202020020 is 20020202011.

It can be written as a sum of positive squares in 4 ways, for example, as 1393080976 + 108808939044 = 37324^2 + 329862^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 110202019979 and 110202020006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148527 + ... + 492406.

It is an arithmetic number, because the mean of its divisors is an integer number (9643813431).

Almost surely, 2^110202020020 is an apocalyptic number.

110202020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110202020020 is an abundant number, since it is smaller than the sum of its proper divisors (121249502324).

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

110202020020 is a wasteful number, since it uses less digits than its factorization.

110202020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649539 (or 649537 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 110202020020 its reverse (20020202011), we get a palindrome (130222222031).

The spelling of 110202020020 in words is "one hundred ten billion, two hundred two million, twenty thousand, twenty".