1022223012 has 12 divisors (see below), whose sum is σ = 2385187056. Its totient is φ = 340741000.

The previous prime is 1022222983. The next prime is 1022223019. The reversal of 1022223012 is 2103222201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1022222982 and 1022223000.

It is not an unprimeable number, because it can be changed into a prime (1022223019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42592614 + ... + 42592637.

It is an arithmetic number, because the mean of its divisors is an integer number (198765588).

Almost surely, 2^1022223012 is an apocalyptic number.

1022223012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022223012 is an abundant number, since it is smaller than the sum of its proper divisors (1362964044).

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

1022223012 is a wasteful number, since it uses less digits than its factorization.

1022223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85185258 (or 85185256 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1022223012 is about 31972.2225064195. Note that the first 3 decimals coincide. The cubic root of 1022223012 is about 1007.3534646815.

Adding to 1022223012 its reverse (2103222201), we get a palindrome (3125445213).

The spelling of 1022223012 in words is "one billion, twenty-two million, two hundred twenty-three thousand, twelve".