20202212320 has 48 divisors (see below), whose sum is σ = 48150138960. Its totient is φ = 8009365504.

The previous prime is 20202212299. The next prime is 20202212347. The reversal of 20202212320 is 2321220202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20202212294 and 20202212303.

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, 540610 + ... + 576769.

It is an arithmetic number, because the mean of its divisors is an integer number (1003127895).

Almost surely, 2^20202212320 is an apocalyptic number.

20202212320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202212320 is an abundant number, since it is smaller than the sum of its proper divisors (27947926640).

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

20202212320 is a wasteful number, since it uses less digits than its factorization.

20202212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117507 (or 1117499 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20202212320 its reverse (2321220202), we get a palindrome (22523432522).

The spelling of 20202212320 in words is "twenty billion, two hundred two million, two hundred twelve thousand, three hundred twenty".