121011221222012 has 36 divisors (see below), whose sum is σ = 232799762665008. Its totient is φ = 54998441942400.

The previous prime is 121011221221949. The next prime is 121011221222041. The reversal of 121011221222012 is 210222122110121.

121011221222012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11129789 + ... + 19128372.

It is an arithmetic number, because the mean of its divisors is an integer number (6466660074028).

Almost surely, 2^{121011221222012} is an apocalyptic number.

It is an amenable number.

121011221222012 is a deficient number, since it is larger than the sum of its proper divisors (111788541442996).

121011221222012 is a wasteful number, since it uses less digits than its factorization.

121011221222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30266450 (or 30266437 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121011221222012 its reverse (210222122110121), we get a palindrome (331233343332133).

The spelling of 121011221222012 in words is "one hundred twenty-one trillion, eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, twelve".