121122212212110 has 64 divisors (see below), whose sum is σ = 298630388750400. Its totient is φ = 31417829655552.

The previous prime is 121122212212087. The next prime is 121122212212117. The reversal of 121122212212110 is 11212212221121.

121122212212110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122212212117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10593055 + ... + 18827034.

It is an arithmetic number, because the mean of its divisors is an integer number (4666099824225).

Almost surely, 2^{121122212212110} is an apocalyptic number.

121122212212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121122212212110 is an abundant number, since it is smaller than the sum of its proper divisors (177508176538290).

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

121122212212110 is a wasteful number, since it uses less digits than its factorization.

121122212212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29423845.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121122212212110 its reverse (11212212221121), we get a palindrome (132334424433231).

The spelling of 121122212212110 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, one hundred ten".