121123226400 has 432 divisors, whose sum is σ = 434699302464. Its totient is φ = 29272320000.

The previous prime is 121123226387. The next prime is 121123226437. The reversal of 121123226400 is 4622321121.

121123226400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 183242070 + ... + 183242730.

Almost surely, 2^121123226400 is an apocalyptic number.

121123226400 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 121123226400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217349651232).

121123226400 is an abundant number, since it is smaller than the sum of its proper divisors (313576076064).

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

121123226400 is a wasteful number, since it uses less digits than its factorization.

121123226400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121123226400 its reverse (4622321121), we get a palindrome (125745547521).

The spelling of 121123226400 in words is "one hundred twenty-one billion, one hundred twenty-three million, two hundred twenty-six thousand, four hundred".