11100121210 has 16 divisors (see below), whose sum is σ = 19981587456. Its totient is φ = 4439744208.

The previous prime is 11100121187. The next prime is 11100121211. The reversal of 11100121210 is 1212100111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (11100121211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168679 + ... + 225061.

It is an arithmetic number, because the mean of its divisors is an integer number (1248849216).

Almost surely, 2^11100121210 is an apocalyptic number.

11100121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11100121210 is a deficient number, since it is larger than the sum of its proper divisors (8881466246).

11100121210 is a wasteful number, since it uses less digits than its factorization.

11100121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76077.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11100121210 its reverse (1212100111), we get a palindrome (12312221321).

The spelling of 11100121210 in words is "eleven billion, one hundred million, one hundred twenty-one thousand, two hundred ten".