1100122020 has 96 divisors (see below), whose sum is σ = 3623961600. Its totient is φ = 276106752.

The previous prime is 1100122013. The next prime is 1100122057. The reversal of 1100122020 is 202210011.

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 = 1100121993 and 1100122011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50740 + ... + 69099.

It is an arithmetic number, because the mean of its divisors is an integer number (37749600).

Almost surely, 2^1100122020 is an apocalyptic number.

1100122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100122020 is an abundant number, since it is smaller than the sum of its proper divisors (2523839580).

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

1100122020 is a wasteful number, since it uses less digits than its factorization.

1100122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119874 (or 119866 counting only the distinct ones).

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

The square root of 1100122020 is about 33168.0873732568. The cubic root of 1100122020 is about 1032.3182833844.

Adding to 1100122020 its reverse (202210011), we get a palindrome (1302332031).

The spelling of 1100122020 in words is "one billion, one hundred million, one hundred twenty-two thousand, twenty".