121230101200 has 240 divisors, whose sum is σ = 322642849536. Its totient is φ = 43496294400.

The previous prime is 121230101173. The next prime is 121230101219. The reversal of 121230101200 is 2101032121.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 29487145 + ... + 29491255.

Almost surely, 2^121230101200 is an apocalyptic number.

121230101200 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 121230101200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161321424768).

121230101200 is an abundant number, since it is smaller than the sum of its proper divisors (201412748336).

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

121230101200 is a wasteful number, since it uses less digits than its factorization.

121230101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121230101200 its reverse (2101032121), we get a palindrome (123331133321).

The spelling of 121230101200 in words is "one hundred twenty-one billion, two hundred thirty million, one hundred one thousand, two hundred".