11001220111210 has 16 divisors (see below), whose sum is σ = 22631081371776. Its totient is φ = 3771846895248.

The previous prime is 11001220111177. The next prime is 11001220111279. The reversal of 11001220111210 is 1211102210011.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78580143582 + ... + 78580143721.

It is an arithmetic number, because the mean of its divisors is an integer number (1414442585736).

Almost surely, 2^{11001220111210} is an apocalyptic number.

11001220111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11001220111210 is an abundant number, since it is smaller than the sum of its proper divisors (11629861260566).

11001220111210 is a wasteful number, since it uses less digits than its factorization.

11001220111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157160287317.

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

Adding to 11001220111210 its reverse (1211102210011), we get a palindrome (12212322321221).

The spelling of 11001220111210 in words is "eleven trillion, one billion, two hundred twenty million, one hundred eleven thousand, two hundred ten".