121201012132200 has 1152 divisors, whose sum is σ = 561277133464320. Its totient is φ = 22619027865600.

The previous prime is 121201012132199. The next prime is 121201012132219. The reversal of 121201012132200 is 2231210102121.

121201012132200 is a `hidden beast` number, since 1 + 21 + 201 + 0 + 121 + 322 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 65757592 + ... + 67575608.

It is an arithmetic number, because the mean of its divisors is an integer number (487219733910).

Almost surely, 2^{121201012132200} is an apocalyptic number.

121201012132200 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 121201012132200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280638566732160).

121201012132200 is an abundant number, since it is smaller than the sum of its proper divisors (440076121332120).

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

121201012132200 is a wasteful number, since it uses less digits than its factorization.

121201012132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818107 (or 1818095 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121201012132200 its reverse (2231210102121), we get a palindrome (123432222234321).

The spelling of 121201012132200 in words is "one hundred twenty-one trillion, two hundred one billion, twelve million, one hundred thirty-two thousand, two hundred".