121102130031220 has 24 divisors (see below), whose sum is σ = 273877124840424. Its totient is φ = 44714632626816.

The previous prime is 121102130031137. The next prime is 121102130031221. The reversal of 121102130031220 is 22130031201121.

It can be written as a sum of positive squares in 4 ways, for example, as 1557558912484 + 119544571118736 = 1248022^2 + 10933644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102130031221) 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, 232888711339 + ... + 232888711858.

It is an arithmetic number, because the mean of its divisors is an integer number (11411546868351).

Almost surely, 2^{121102130031220} is an apocalyptic number.

121102130031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102130031220 is an abundant number, since it is smaller than the sum of its proper divisors (152774994809204).

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

121102130031220 is a wasteful number, since it uses less digits than its factorization.

121102130031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465777423219 (or 465777423217 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121102130031220 its reverse (22130031201121), we get a palindrome (143232161232341).

The spelling of 121102130031220 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred thirty million, thirty-one thousand, two hundred twenty".