1211200010 has 32 divisors (see below), whose sum is σ = 2279525760. Its totient is φ = 462483648.

The previous prime is 1211200009. The next prime is 1211200031. The reversal of 1211200010 is 100021121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115256 + ... + 125324.

It is an arithmetic number, because the mean of its divisors is an integer number (71235180).

Almost surely, 2^1211200010 is an apocalyptic number.

1211200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211200010 is a deficient number, since it is larger than the sum of its proper divisors (1068325750).

1211200010 is a wasteful number, since it uses less digits than its factorization.

1211200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10622.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1211200010 is about 34802.2989183186. The cubic root of 1211200010 is about 1065.9543885153.

Adding to 1211200010 its reverse (100021121), we get a palindrome (1311221131).

The spelling of 1211200010 in words is "one billion, two hundred eleven million, two hundred thousand, ten".