121121202012 has 12 divisors (see below), whose sum is σ = 282616138056. Its totient is φ = 40373734000.

The previous prime is 121121201987. The next prime is 121121202043. The reversal of 121121202012 is 210202121121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 121121201982 and 121121202000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5046716739 + ... + 5046716762.

It is an arithmetic number, because the mean of its divisors is an integer number (23551344838).

Almost surely, 2^121121202012 is an apocalyptic number.

121121202012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121121202012 is an abundant number, since it is smaller than the sum of its proper divisors (161494936044).

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

121121202012 is a wasteful number, since it uses less digits than its factorization.

121121202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093433508 (or 10093433506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121121202012 its reverse (210202121121), we get a palindrome (331323323133).

The spelling of 121121202012 in words is "one hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, twelve".