121210110221120 has 112 divisors (see below), whose sum is σ = 297967247778816. Its totient is φ = 46916109312000.

The previous prime is 121210110221117. The next prime is 121210110221197. The reversal of 121210110221120 is 21122011012121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119238200 + ... + 120250440.

It is an arithmetic number, because the mean of its divisors is an integer number (2660421855168).

Almost surely, 2^{121210110221120} is an apocalyptic number.

121210110221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121210110221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148983623889408).

121210110221120 is an abundant number, since it is smaller than the sum of its proper divisors (176757137557696).

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

121210110221120 is a wasteful number, since it uses less digits than its factorization.

121210110221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024360 (or 1024350 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121210110221120 its reverse (21122011012121), we get a palindrome (142332121233241).

The spelling of 121210110221120 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred ten million, two hundred twenty-one thousand, one hundred twenty".