121230230220112 has 20 divisors (see below), whose sum is σ = 252951538055860. Its totient is φ = 55952413947648.

The previous prime is 121230230220109. The next prime is 121230230220139. The reversal of 121230230220112 is 211022032032121.

It can be written as a sum of positive squares in 2 ways, for example, as 43358853545536 + 77871376674576 = 6584744^2 + 8824476^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291418822437 + ... + 291418822852.

It is an arithmetic number, because the mean of its divisors is an integer number (12647576902793).

Almost surely, 2^{121230230220112} is an apocalyptic number.

It is an amenable number.

121230230220112 is an abundant number, since it is smaller than the sum of its proper divisors (131721307835748).

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

121230230220112 is a wasteful number, since it uses less digits than its factorization.

121230230220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582837645310 (or 582837645304 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121230230220112 its reverse (211022032032121), we get a palindrome (332252262252233).

The spelling of 121230230220112 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred thirty million, two hundred twenty thousand, one hundred twelve".