121003222032 has 320 divisors, whose sum is σ = 438968094720. Its totient is φ = 30998246400.

The previous prime is 121003221893. The next prime is 121003222051. The reversal of 121003222032 is 230222300121.

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 = 121003221996 and 121003222014.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2403357 + ... + 2453187.

It is an arithmetic number, because the mean of its divisors is an integer number (1371775296).

Almost surely, 2^121003222032 is an apocalyptic number.

121003222032 is a gapful number since it is divisible by the number (12) 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 121003222032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219484047360).

121003222032 is an abundant number, since it is smaller than the sum of its proper divisors (317964872688).

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

121003222032 is a wasteful number, since it uses less digits than its factorization.

121003222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49939 (or 49927 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 121003222032 its reverse (230222300121), we get a palindrome (351225522153).

The spelling of 121003222032 in words is "one hundred twenty-one billion, three million, two hundred twenty-two thousand, thirty-two".