1022020120 has 128 divisors (see below), whose sum is σ = 2592233280. Its totient is φ = 359424000.

The previous prime is 1022020099. The next prime is 1022020151. The reversal of 1022020120 is 210202201.

1022020120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1022020097 and 1022020106.

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, 3265084 + ... + 3265396.

Almost surely, 2^1022020120 is an apocalyptic number.

1022020120 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 1022020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296116640).

1022020120 is an abundant number, since it is smaller than the sum of its proper divisors (1570213160).

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

1022020120 is a wasteful number, since it uses less digits than its factorization.

1022020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1022020120 is about 31969.0494072001. The cubic root of 1022020120 is about 1007.2868133799.

Adding to 1022020120 its reverse (210202201), we get a palindrome (1232222321).

The spelling of 1022020120 in words is "one billion, twenty-two million, twenty thousand, one hundred twenty".