20222132220 has 96 divisors (see below), whose sum is σ = 65648701440. Its totient is φ = 5158105920.

The previous prime is 20222132207. The next prime is 20222132267. The reversal of 20222132220 is 2223122202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20222132193 and 20222132202.

It is a congruent number.

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, 801676 + ... + 826515.

It is an arithmetic number, because the mean of its divisors is an integer number (683840640).

Almost surely, 2^20222132220 is an apocalyptic number.

20222132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222132220 is an abundant number, since it is smaller than the sum of its proper divisors (45426569220).

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

20222132220 is a wasteful number, since it uses less digits than its factorization.

20222132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628232 (or 1628224 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20222132220 its reverse (2223122202), we get a palindrome (22445254422).

The spelling of 20222132220 in words is "twenty billion, two hundred twenty-two million, one hundred thirty-two thousand, two hundred twenty".