1022113020 has 48 divisors (see below), whose sum is σ = 2863405440. Its totient is φ = 272421696.

The previous prime is 1022113013. The next prime is 1022113039. The reversal of 1022113020 is 203112201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1022112987 and 1022113005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166119 + ... + 172161.

It is an arithmetic number, because the mean of its divisors is an integer number (59654280).

Almost surely, 2^1022113020 is an apocalyptic number.

1022113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022113020 is an abundant number, since it is smaller than the sum of its proper divisors (1841292420).

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

1022113020 is a wasteful number, since it uses less digits than its factorization.

1022113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874 (or 8872 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1022113020 is about 31970.5023420027. The cubic root of 1022113020 is about 1007.3173327105.

Adding to 1022113020 its reverse (203112201), we get a palindrome (1225225221).

The spelling of 1022113020 in words is "one billion, twenty-two million, one hundred thirteen thousand, twenty".