121321103022 has 96 divisors (see below), whose sum is σ = 314642845440. Its totient is φ = 34550031600.

The previous prime is 121321102999. The next prime is 121321103027. The reversal of 121321103022 is 220301123121.

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 = 121321102986 and 121321103004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321103027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 737647 + ... + 886997.

It is an arithmetic number, because the mean of its divisors is an integer number (3277529640).

Almost surely, 2^121321103022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121321103022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157321422720).

121321103022 is an abundant number, since it is smaller than the sum of its proper divisors (193321742418).

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

121321103022 is a wasteful number, since it uses less digits than its factorization.

121321103022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149683 (or 149670 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121321103022 its reverse (220301123121), we get a palindrome (341622226143).

The spelling of 121321103022 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred three thousand, twenty-two".