121022441400 has 192 divisors, whose sum is σ = 429265025280. Its totient is φ = 27630028800.

The previous prime is 121022441369. The next prime is 121022441411. The reversal of 121022441400 is 4144220121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3683847 + ... + 3716553.

It is an arithmetic number, because the mean of its divisors is an integer number (2235755340).

Almost surely, 2^121022441400 is an apocalyptic number.

121022441400 is a gapful number since it is divisible by the number (10) 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 121022441400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214632512640).

121022441400 is an abundant number, since it is smaller than the sum of its proper divisors (308242583880).

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

121022441400 is a wasteful number, since it uses less digits than its factorization.

121022441400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33614 (or 33605 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121022441400 its reverse (4144220121), we get a palindrome (125166661521).

The spelling of 121022441400 in words is "one hundred twenty-one billion, twenty-two million, four hundred forty-one thousand, four hundred".