1230222020 has 12 divisors (see below), whose sum is σ = 2583466284. Its totient is φ = 492088800.

The previous prime is 1230221977. The next prime is 1230222031. The reversal of 1230222020 is 202220321.

It can be written as a sum of positive squares in 2 ways, for example, as 816587776 + 413634244 = 28576^2 + 20338^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1230221986 and 1230222004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30755531 + ... + 30755570.

It is an arithmetic number, because the mean of its divisors is an integer number (215288857).

Almost surely, 2^1230222020 is an apocalyptic number.

1230222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230222020 is an abundant number, since it is smaller than the sum of its proper divisors (1353244264).

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

1230222020 is a wasteful number, since it uses less digits than its factorization.

1230222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61511110 (or 61511108 counting only the distinct ones).

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

The square root of 1230222020 is about 35074.5209518248. The cubic root of 1230222020 is about 1071.5057323139.

Adding to 1230222020 its reverse (202220321), we get a palindrome (1432442341).

The spelling of 1230222020 in words is "one billion, two hundred thirty million, two hundred twenty-two thousand, twenty".