121121010010012 has 12 divisors (see below), whose sum is σ = 211963344230736. Its totient is φ = 60560054515520.

The previous prime is 121121010010003. The next prime is 121121010010027. The reversal of 121121010010012 is 210010010121121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121121010009974 and 121121010010001.

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, 112017064 + ... + 113093167.

It is an arithmetic number, because the mean of its divisors is an integer number (17663612019228).

Almost surely, 2^{121121010010012} is an apocalyptic number.

It is an amenable number.

121121010010012 is a deficient number, since it is larger than the sum of its proper divisors (90842334220724).

121121010010012 is a wasteful number, since it uses less digits than its factorization.

121121010010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225244748 (or 225244746 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121121010010012 its reverse (210010010121121), we get a palindrome (331131020131133).

The spelling of 121121010010012 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, ten million, ten thousand, twelve".