121221012332310 has 64 divisors (see below), whose sum is σ = 317379833694720. Its totient is φ = 29386802522880.

The previous prime is 121221012332263. The next prime is 121221012332317. The reversal of 121221012332310 is 13233210122121.

It is a super-2 number, since 2×121221012332310² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221012332317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120312306 + ... + 121315674.

It is an arithmetic number, because the mean of its divisors is an integer number (4959059901480).

Almost surely, 2^{121221012332310} is an apocalyptic number.

121221012332310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121221012332310 is an abundant number, since it is smaller than the sum of its proper divisors (196158821362410).

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

121221012332310 is a wasteful number, since it uses less digits than its factorization.

121221012332310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369493.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121221012332310 its reverse (13233210122121), we get a palindrome (134454222454431).

The spelling of 121221012332310 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twelve million, three hundred thirty-two thousand, three hundred ten".