20222222020 has 384 divisors, whose sum is σ = 58797591552. Its totient is φ = 5640192000.

The previous prime is 20222221991. The next prime is 20222222051. The reversal of 20222222020 is 2022222202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20222221985 and 20222222003.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 147607392 + ... + 147607528.

It is an arithmetic number, because the mean of its divisors is an integer number (153118728).

Almost surely, 2^20222222020 is an apocalyptic number.

20222222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29398795776).

20222222020 is an abundant number, since it is smaller than the sum of its proper divisors (38575369532).

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

20222222020 is a wasteful number, since it uses less digits than its factorization.

20222222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20222222020 its reverse (2022222202), we get a palindrome (22244444222).

It can be divided in two parts, 20222 and 222020, that added together give a palindrome (242242).

The spelling of 20222222020 in words is "twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty".