11223123121102 has 16 divisors (see below), whose sum is σ = 18001445011632. Its totient is φ = 5229177923200.

The previous prime is 11223123121087. The next prime is 11223123121121. The reversal of 11223123121102 is 20112132132211.

It is a happy number.

It is a congruent 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, 1634114668 + ... + 1634121535.

It is an arithmetic number, because the mean of its divisors is an integer number (1125090313227).

Almost surely, 2^{11223123121102} is an apocalyptic number.

11223123121102 is a deficient number, since it is larger than the sum of its proper divisors (6778321890530).

11223123121102 is a wasteful number, since it uses less digits than its factorization.

11223123121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268236323.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11223123121102 its reverse (20112132132211), we get a palindrome (31335255253313).

The spelling of 11223123121102 in words is "eleven trillion, two hundred twenty-three billion, one hundred twenty-three million, one hundred twenty-one thousand, one hundred two".