121211011310 has 32 divisors (see below), whose sum is σ = 228531663360. Its totient is φ = 46200027808.

The previous prime is 121211011301. The next prime is 121211011319. The reversal of 121211011310 is 13110112121.

121211011310 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121211011301) and next prime (121211011319).

It is a super-2 number, since 2×121211011310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211011319) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 941420 + ... + 1062399.

It is an arithmetic number, because the mean of its divisors is an integer number (7141614480).

Almost surely, 2^121211011310 is an apocalyptic number.

121211011310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121211011310 is a deficient number, since it is larger than the sum of its proper divisors (107320652050).

121211011310 is a wasteful number, since it uses less digits than its factorization.

121211011310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004112.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 121211011310 its reverse (13110112121), we get a palindrome (134321123431).

The spelling of 121211011310 in words is "one hundred twenty-one billion, two hundred eleven million, eleven thousand, three hundred ten".