1223013012 has 48 divisors (see below), whose sum is σ = 3100453440. Its totient is φ = 372976128.

The previous prime is 1223012981. The next prime is 1223013037. The reversal of 1223013012 is 2103103221.

It is a junction number, because it is equal to n+sod(n) for n = 1223012982 and 1223013000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17062 + ... + 52317.

It is an arithmetic number, because the mean of its divisors is an integer number (64592780).

Almost surely, 2^1223013012 is an apocalyptic number.

1223013012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223013012 is an abundant number, since it is smaller than the sum of its proper divisors (1877440428).

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

1223013012 is a wasteful number, since it uses less digits than its factorization.

1223013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69512 (or 69510 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1223013012 is about 34971.6029372404. The cubic root of 1223013012 is about 1069.4086498634.

Adding to 1223013012 its reverse (2103103221), we get a palindrome (3326116233).

The spelling of 1223013012 in words is "one billion, two hundred twenty-three million, thirteen thousand, twelve".