1023221112 has 16 divisors (see below), whose sum is σ = 2558052840. Its totient is φ = 341073696.

The previous prime is 1023221107. The next prime is 1023221141. The reversal of 1023221112 is 2111223201.

It is a junction number, because it is equal to n+sod(n) for n = 1023221091 and 1023221100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21317083 + ... + 21317130.

Almost surely, 2^1023221112 is an apocalyptic number.

1023221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023221112 is an abundant number, since it is smaller than the sum of its proper divisors (1534831728).

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

1023221112 is a wasteful number, since it uses less digits than its factorization.

1023221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42634222 (or 42634218 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1023221112 is about 31987.8275598703. The cubic root of 1023221112 is about 1007.6812184825.

Adding to 1023221112 its reverse (2111223201), we get a palindrome (3134444313).

The spelling of 1023221112 in words is "one billion, twenty-three million, two hundred twenty-one thousand, one hundred twelve".