121230222012120 has 64 divisors (see below), whose sum is σ = 391666871121120. Its totient is φ = 29841285417984.

The previous prime is 121230222012077. The next prime is 121230222012127. The reversal of 121230222012120 is 21210222032121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230222012127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38855838829 + ... + 38855841948.

Almost surely, 2^{121230222012120} is an apocalyptic number.

121230222012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121230222012120 is an abundant number, since it is smaller than the sum of its proper divisors (270436649109000).

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

121230222012120 is a wasteful number, since it uses less digits than its factorization.

121230222012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77711680804 (or 77711680800 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121230222012120 its reverse (21210222032121), we get a palindrome (142440444044241).

The spelling of 121230222012120 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred twenty-two million, twelve thousand, one hundred twenty".