11221222021102 has 16 divisors (see below), whose sum is σ = 16840507250160. Its totient is φ = 5607719849088.

The previous prime is 11221222021033. The next prime is 11221222021103. The reversal of 11221222021102 is 20112022212211.

It is a self number, because there is not a number n which added to its sum of digits gives 11221222021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221222021103) 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, 122742253 + ... + 122833639.

It is an arithmetic number, because the mean of its divisors is an integer number (1052531703135).

Almost surely, 2^{11221222021102} is an apocalyptic number.

11221222021102 is a deficient number, since it is larger than the sum of its proper divisors (5619285229058).

11221222021102 is a wasteful number, since it uses less digits than its factorization.

11221222021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122355.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11221222021102 its reverse (20112022212211), we get a palindrome (31333244233313).

The spelling of 11221222021102 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, one hundred two".