1121021102124 has 432 divisors, whose sum is σ = 3837656309760. Its totient is φ = 271878405120.

The previous prime is 1121021102119. The next prime is 1121021102161. The reversal of 1121021102124 is 4212011201211.

It is a super-2 number, since 2×1121021102124² (a number of 25 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1121021102097 and 1121021102106.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 41879857 + ... + 41906615.

It is an arithmetic number, because the mean of its divisors is an integer number (8883463680).

Almost surely, 2^{1121021102124} is an apocalyptic number.

1121021102124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121021102124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918828154880).

1121021102124 is an abundant number, since it is smaller than the sum of its proper divisors (2716635207636).

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

1121021102124 is a wasteful number, since it uses less digits than its factorization.

1121021102124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26938 (or 26926 counting only the distinct ones).

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

Adding to 1121021102124 its reverse (4212011201211), we get a palindrome (5333032303335).

The spelling of 1121021102124 in words is "one trillion, one hundred twenty-one billion, twenty-one million, one hundred two thousand, one hundred twenty-four".