121445425200 has 360 divisors, whose sum is σ = 430067227408. Its totient is φ = 29272320000.

The previous prime is 121445425169. The next prime is 121445425259. The reversal of 121445425200 is 2524544121.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 26278890 + ... + 26283510.

Almost surely, 2^121445425200 is an apocalyptic number.

121445425200 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 121445425200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215033613704).

121445425200 is an abundant number, since it is smaller than the sum of its proper divisors (308621802208).

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

121445425200 is a wasteful number, since it uses less digits than its factorization.

121445425200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845 (or 4823 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 121445425200 its reverse (2524544121), we get a palindrome (123969969321).

It can be divided in two parts, 121445 and 425200, that added together give a palindrome (546645).

The spelling of 121445425200 in words is "one hundred twenty-one billion, four hundred forty-five million, four hundred twenty-five thousand, two hundred".