121220222020012 has 12 divisors (see below), whose sum is σ = 212208614440200. Its totient is φ = 60589189322816.

The previous prime is 121220222019977. The next prime is 121220222020063. The reversal of 121220222020012 is 210020222022121.

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, 5230408762 + ... + 5230431937.

It is an arithmetic number, because the mean of its divisors is an integer number (17684051203350).

Almost surely, 2^{121220222020012} is an apocalyptic number.

It is an amenable number.

121220222020012 is a deficient number, since it is larger than the sum of its proper divisors (90988392420188).

121220222020012 is a wasteful number, since it uses less digits than its factorization.

121220222020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460843600 (or 10460843598 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121220222020012 its reverse (210020222022121), we get a palindrome (331240444042133).

The spelling of 121220222020012 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred twenty-two million, twenty thousand, twelve".