1212322032 has 80 divisors (see below), whose sum is σ = 3599844000. Its totient is φ = 390168576.

The previous prime is 1212322021. The next prime is 1212322039. The reversal of 1212322032 is 2302232121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1212321996 and 1212322014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212322039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35857 + ... + 60912.

It is an arithmetic number, because the mean of its divisors is an integer number (44998050).

Almost surely, 2^1212322032 is an apocalyptic number.

1212322032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212322032 is an abundant number, since it is smaller than the sum of its proper divisors (2387521968).

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

1212322032 is a wasteful number, since it uses less digits than its factorization.

1212322032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96815 (or 96803 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1212322032 is about 34818.4151276304. The cubic root of 1212322032 is about 1066.2834437590.

Adding to 1212322032 its reverse (2302232121), we get a palindrome (3514554153).

The spelling of 1212322032 in words is "one billion, two hundred twelve million, three hundred twenty-two thousand, thirty-two".