121321021223110 has 16 divisors (see below), whose sum is σ = 218398264718832. Its totient is φ = 48523869263200.

The previous prime is 121321021223099. The next prime is 121321021223117. The reversal of 121321021223110 is 11322120123121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321021223117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567291001 + ... + 567504820.

It is an arithmetic number, because the mean of its divisors is an integer number (13649891544927).

Almost surely, 2^{121321021223110} is an apocalyptic number.

121321021223110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121321021223110 is a deficient number, since it is larger than the sum of its proper divisors (97077243495722).

121321021223110 is a wasteful number, since it uses less digits than its factorization.

121321021223110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134806519.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 121321021223110 its reverse (11322120123121), we get a palindrome (132643141346231).

The spelling of 121321021223110 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, twenty-one million, two hundred twenty-three thousand, one hundred ten".