1023220012 has 12 divisors (see below), whose sum is σ = 1791948816. Its totient is φ = 511234640.

The previous prime is 1023220001. The next prime is 1023220061. The reversal of 1023220012 is 2100223201.

It is a junction number, because it is equal to n+sod(n) for n = 1023219974 and 1023220001.

It is an unprimeable number.

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, 87664 + ... + 98647.

It is an arithmetic number, because the mean of its divisors is an integer number (149329068).

Almost surely, 2^1023220012 is an apocalyptic number.

It is an amenable number.

1023220012 is a deficient number, since it is larger than the sum of its proper divisors (768728804).

1023220012 is a wasteful number, since it uses less digits than its factorization.

1023220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187688 (or 187686 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1023220012 is about 31987.8103658253. The cubic root of 1023220012 is about 1007.6808573843.

Adding to 1023220012 its reverse (2100223201), we get a palindrome (3123443213).

The spelling of 1023220012 in words is "one billion, twenty-three million, two hundred twenty thousand, twelve".