121332344400 has 90 divisors (see below), whose sum is σ = 421056950990. Its totient is φ = 32355290880.

The previous prime is 121332344339. The next prime is 121332344423. The reversal of 121332344400 is 4443233121.

121332344400 is a `hidden beast` number, since 1 + 21 + 3 + 3 + 234 + 4 + 400 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1211875344 + 120120469056 = 34812^2 + 346584^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×121332344400² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16848115 + ... + 16855314.

Almost surely, 2^121332344400 is an apocalyptic number.

121332344400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121332344400 is an abundant number, since it is smaller than the sum of its proper divisors (299724606590).

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

121332344400 is a wasteful number, since it uses less digits than its factorization.

121332344400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33703453 (or 33703439 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 121332344400 its reverse (4443233121), we get a palindrome (125775577521).

The spelling of 121332344400 in words is "one hundred twenty-one billion, three hundred thirty-two million, three hundred forty-four thousand, four hundred".