121201121210 has 16 divisors (see below), whose sum is σ = 234943712136. Its totient is φ = 44751183168.

The previous prime is 121201121191. The next prime is 121201121221. The reversal of 121201121210 is 12121102121.

121201121210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 72024067129 + 49177054081 = 268373^2 + 221759^2 .

It is a super-2 number, since 2×121201121210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466158029 + ... + 466158288.

Almost surely, 2^121201121210 is an apocalyptic number.

121201121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121201121210 is a deficient number, since it is larger than the sum of its proper divisors (113742590926).

121201121210 is a wasteful number, since it uses less digits than its factorization.

121201121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932316337.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121201121210 its reverse (12121102121), we get a palindrome (133322223331).

The spelling of 121201121210 in words is "one hundred twenty-one billion, two hundred one million, one hundred twenty-one thousand, two hundred ten".