1223461512 has 384 divisors, whose sum is σ = 4340044800. Its totient is φ = 302690304.

The previous prime is 1223461511. The next prime is 1223461529. The reversal of 1223461512 is 2151643221.

1223461512 is a `hidden beast` number, since 1 + 2 + 2 + 34 + 615 + 12 = 666.

It is a super-2 number, since 2×1223461512² = 2993716142690652288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223461511) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8930308 + ... + 8930444.

It is an arithmetic number, because the mean of its divisors is an integer number (11302200).

Almost surely, 2^1223461512 is an apocalyptic number.

1223461512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223461512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2170022400).

1223461512 is an abundant number, since it is smaller than the sum of its proper divisors (3116583288).

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

1223461512 is a wasteful number, since it uses less digits than its factorization.

1223461512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 238 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1223461512 is about 34978.0146949480. The cubic root of 1223461512 is about 1069.5393574294.

The spelling of 1223461512 in words is "one billion, two hundred twenty-three million, four hundred sixty-one thousand, five hundred twelve".