1211234200 has 72 divisors (see below), whose sum is σ = 3095465940. Its totient is φ = 440440000.

The previous prime is 1211234161. The next prime is 1211234203. The reversal of 1211234200 is 24321121.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211234203) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 826 + ... + 49225.

Almost surely, 2^1211234200 is an apocalyptic number.

1211234200 is a gapful number since it is divisible by the number (10) 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 1211234200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547732970).

1211234200 is an abundant number, since it is smaller than the sum of its proper divisors (1884231740).

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

1211234200 is a wasteful number, since it uses less digits than its factorization.

1211234200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50089 (or 50069 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1211234200 is about 34802.7901180351. The cubic root of 1211234200 is about 1065.9644184132.

Adding to 1211234200 its reverse (24321121), we get a palindrome (1235555321).

It can be divided in two parts, 121 and 1234200, that added together give a palindrome (1234321).

The spelling of 1211234200 in words is "one billion, two hundred eleven million, two hundred thirty-four thousand, two hundred".