121000021012012 has 24 divisors (see below), whose sum is σ = 213683755631472. Its totient is φ = 59947819276800.

The previous prime is 121000021011973. The next prime is 121000021012021. The reversal of 121000021012012 is 210210120000121.

It is a junction number, because it is equal to n+sod(n) for n = 121000021011983 and 121000021012001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35868289 + ... + 39096472.

It is an arithmetic number, because the mean of its divisors is an integer number (8903489817978).

Almost surely, 2^{121000021012012} is an apocalyptic number.

It is an amenable number.

121000021012012 is a deficient number, since it is larger than the sum of its proper divisors (92683734619460).

121000021012012 is a wasteful number, since it uses less digits than its factorization.

121000021012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74968449 (or 74968447 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121000021012012 its reverse (210210120000121), we get a palindrome (331210141012133).

The spelling of 121000021012012 in words is "one hundred twenty-one trillion, twenty-one million, twelve thousand, twelve".