20202211020 has 24 divisors (see below), whose sum is σ = 56566191024. Its totient is φ = 5387256256.

The previous prime is 20202210989. The next prime is 20202211021. The reversal of 20202211020 is 2011220202.

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 = 20202210987 and 20202211005.

It is not an unprimeable number, because it can be changed into a prime (20202211021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168351699 + ... + 168351818.

It is an arithmetic number, because the mean of its divisors is an integer number (2356924626).

Almost surely, 2^20202211020 is an apocalyptic number.

20202211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202211020 is an abundant number, since it is smaller than the sum of its proper divisors (36363980004).

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

20202211020 is a wasteful number, since it uses less digits than its factorization.

20202211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336703529 (or 336703527 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20202211020 its reverse (2011220202), we get a palindrome (22213431222).

The spelling of 20202211020 in words is "twenty billion, two hundred two million, two hundred eleven thousand, twenty".