1212541232 has 80 divisors (see below), whose sum is σ = 2811248640. Its totient is φ = 495365376.

The previous prime is 1212541199. The next prime is 1212541241. The reversal of 1212541232 is 2321452121.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1212541198 and 1212541207.

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, 985994 + ... + 987222.

It is an arithmetic number, because the mean of its divisors is an integer number (35140608).

Almost surely, 2^1212541232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212541232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405624320).

1212541232 is an abundant number, since it is smaller than the sum of its proper divisors (1598707408).

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

1212541232 is a wasteful number, since it uses less digits than its factorization.

1212541232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1644 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1212541232 is about 34821.5627449430. The cubic root of 1212541232 is about 1066.3477048050.

Adding to 1212541232 its reverse (2321452121), we get a palindrome (3533993353).

The spelling of 1212541232 in words is "one billion, two hundred twelve million, five hundred forty-one thousand, two hundred thirty-two".