121220230012 has 24 divisors (see below), whose sum is σ = 242460538880. Its totient is φ = 51947224560.

The previous prime is 121220229973. The next prime is 121220230037. The reversal of 121220230012 is 210032022121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177289 + ... + 523327.

Almost surely, 2^121220230012 is an apocalyptic number.

It is an amenable number.

121220230012 is an abundant number, since it is smaller than the sum of its proper divisors (121240308868).

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

121220230012 is a wasteful number, since it uses less digits than its factorization.

121220230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358561 (or 358559 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121220230012 its reverse (210032022121), we get a palindrome (331252252133).

The spelling of 121220230012 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred thirty thousand, twelve".