11100221121102 has 128 divisors (see below), whose sum is σ = 23241915422208. Its totient is φ = 3530869056000.

The previous prime is 11100221121091. The next prime is 11100221121107. The reversal of 11100221121102 is 20112112200111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100221121107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6405204628 + ... + 6405206360.

It is an arithmetic number, because the mean of its divisors is an integer number (181577464236).

Almost surely, 2^{11100221121102} is an apocalyptic number.

11100221121102 is an abundant number, since it is smaller than the sum of its proper divisors (12141694301106).

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

11100221121102 is a wasteful number, since it uses less digits than its factorization.

11100221121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11100221121102 its reverse (20112112200111), we get a palindrome (31212333321213).

The spelling of 11100221121102 in words is "eleven trillion, one hundred billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred two".