11001121021210 has 16 divisors (see below), whose sum is σ = 19928145343176. Its totient is φ = 4372420074048.

The previous prime is 11001121021193. The next prime is 11001121021249. The reversal of 11001121021210 is 1212012110011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10031276193961 + 969844827249 = 3167219^2 + 984807^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3503540157 + ... + 3503543296.

Almost surely, 2^{11001121021210} is an apocalyptic number.

11001121021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11001121021210 is a deficient number, since it is larger than the sum of its proper divisors (8927024321966).

11001121021210 is a wasteful number, since it uses less digits than its factorization.

11001121021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7007083617.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11001121021210 its reverse (1212012110011), we get a palindrome (12213133131221).

The spelling of 11001121021210 in words is "eleven trillion, one billion, one hundred twenty-one million, twenty-one thousand, two hundred ten".