1121121222102 has 40 divisors (see below), whose sum is σ = 2871019428816. Its totient is φ = 320320348848.

The previous prime is 1121121222101. The next prime is 1121121222107. The reversal of 1121121222102 is 2012221211211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121121222101) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 494320393 + ... + 494322660.

Almost surely, 2^{1121121222102} is an apocalyptic number.

1121121222102 is an abundant number, since it is smaller than the sum of its proper divisors (1749898206714).

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

1121121222102 is an equidigital number, since it uses as much as digits as its factorization.

1121121222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988643074 (or 988643065 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1121121222102 its reverse (2012221211211), we get a palindrome (3133342433313).

The spelling of 1121121222102 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred two".