121201122210200 has 48 divisors (see below), whose sum is σ = 281793334050000. Its totient is φ = 48480324168320.

The previous prime is 121201122210193. The next prime is 121201122210247. The reversal of 121201122210200 is 2012221102121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147550226 + ... + 148369374.

It is an arithmetic number, because the mean of its divisors is an integer number (5870694459375).

Almost surely, 2^{121201122210200} is an apocalyptic number.

121201122210200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201122210200 is an abundant number, since it is smaller than the sum of its proper divisors (160592211839800).

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

121201122210200 is a wasteful number, since it uses less digits than its factorization.

121201122210200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558964 (or 1558955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121201122210200 its reverse (2012221102121), we get a palindrome (123213343312321).

The spelling of 121201122210200 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty-two million, two hundred ten thousand, two hundred".