1022223020 has 192 divisors, whose sum is σ = 2740663296. Its totient is φ = 311731200.

The previous prime is 1022223019. The next prime is 1022223053. The reversal of 1022223020 is 203222201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1022222986 and 1022223004.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10120970 + ... + 10121070.

It is an arithmetic number, because the mean of its divisors is an integer number (14274288).

Almost surely, 2^1022223020 is an apocalyptic number.

1022223020 is a gapful number since it is divisible by the number (10) 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 1022223020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370331648).

1022223020 is an abundant number, since it is smaller than the sum of its proper divisors (1718440276).

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

1022223020 is a wasteful number, since it uses less digits than its factorization.

1022223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1022223020 is about 31972.2226315281. Note that the first 3 decimals coincide. The cubic root of 1022223020 is about 1007.3534673093.

Adding to 1022223020 its reverse (203222201), we get a palindrome (1225445221).

The spelling of 1022223020 in words is "one billion, twenty-two million, two hundred twenty-three thousand, twenty".