121122131121210 has 32 divisors (see below), whose sum is σ = 290718138606912. Its totient is φ = 32296454530560.

The previous prime is 121122131121197. The next prime is 121122131121221. The reversal of 121122131121210 is 12121131221121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173422876 + ... + 174119895.

It is an arithmetic number, because the mean of its divisors is an integer number (9084941831466).

Almost surely, 2^{121122131121210} is an apocalyptic number.

121122131121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121122131121210 is an abundant number, since it is smaller than the sum of its proper divisors (169596007485702).

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

121122131121210 is a wasteful number, since it uses less digits than its factorization.

121122131121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347554398.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 121122131121210 its reverse (12121131221121), we get a palindrome (133243262342331).

The spelling of 121122131121210 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred thirty-one million, one hundred twenty-one thousand, two hundred ten".