1232222020 has 12 divisors (see below), whose sum is σ = 2587666284. Its totient is φ = 492888800.

The previous prime is 1232222009. The next prime is 1232222027. The reversal of 1232222020 is 202222321.

It can be written as a sum of positive squares in 2 ways, for example, as 420086016 + 812136004 = 20496^2 + 28498^2 .

It is a super-2 number, since 2×1232222020² = 3036742213145760800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1232221985 and 1232222003.

It is not an unprimeable number, because it can be changed into a prime (1232222027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30805531 + ... + 30805570.

It is an arithmetic number, because the mean of its divisors is an integer number (215638857).

Almost surely, 2^1232222020 is an apocalyptic number.

1232222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232222020 is an abundant number, since it is smaller than the sum of its proper divisors (1355444264).

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

1232222020 is a wasteful number, since it uses less digits than its factorization.

1232222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61611110 (or 61611108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1232222020 is about 35103.0200979916. The cubic root of 1232222020 is about 1072.0860750388.

Adding to 1232222020 its reverse (202222321), we get a palindrome (1434444341).

The spelling of 1232222020 in words is "one billion, two hundred thirty-two million, two hundred twenty-two thousand, twenty".