11100021221010 has 64 divisors (see below), whose sum is σ = 26681543389440. Its totient is φ = 2955398983680.

The previous prime is 11100021220997. The next prime is 11100021221011. The reversal of 11100021221010 is 1012212000111.

It is a super-2 number, since 2×11100021221010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11100021221011) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 49823946 + ... + 50046234.

It is an arithmetic number, because the mean of its divisors is an integer number (416899115460).

Almost surely, 2^{11100021221010} is an apocalyptic number.

11100021221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11100021221010 is an abundant number, since it is smaller than the sum of its proper divisors (15581522168430).

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

11100021221010 is a wasteful number, since it uses less digits than its factorization.

11100021221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224883.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11100021221010 its reverse (1012212000111), we get a palindrome (12112233221121).

The spelling of 11100021221010 in words is "eleven trillion, one hundred billion, twenty-one million, two hundred twenty-one thousand, ten".