121342233012 has 144 divisors (see below), whose sum is σ = 383029428096. Its totient is φ = 29093011200.

The previous prime is 121342232993. The next prime is 121342233013. The reversal of 121342233012 is 210332243121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121342233013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327039 + ... + 591302.

It is an arithmetic number, because the mean of its divisors is an integer number (2659926584).

Almost surely, 2^121342233012 is an apocalyptic number.

121342233012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121342233012 is an abundant number, since it is smaller than the sum of its proper divisors (261687195084).

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

121342233012 is a wasteful number, since it uses less digits than its factorization.

121342233012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918390 (or 918377 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121342233012 its reverse (210332243121), we get a palindrome (331674476133).

The spelling of 121342233012 in words is "one hundred twenty-one billion, three hundred forty-two million, two hundred thirty-three thousand, twelve".