121201011011212 has 24 divisors (see below), whose sum is σ = 233674676503632. Its totient is φ = 54545909544000.

The previous prime is 121201011011209. The next prime is 121201011011231. The reversal of 121201011011212 is 212110110102121.

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, 13636472943 + ... + 13636481830.

It is an arithmetic number, because the mean of its divisors is an integer number (9736444854318).

Almost surely, 2^{121201011011212} is an apocalyptic number.

It is an amenable number.

121201011011212 is a deficient number, since it is larger than the sum of its proper divisors (112473665492420).

121201011011212 is a wasteful number, since it uses less digits than its factorization.

121201011011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27272954889 (or 27272954887 counting only the distinct ones).

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

Adding to 121201011011212 its reverse (212110110102121), we get a palindrome (333311121113333).

Subtracting 121201011011212 from its reverse (212110110102121), we obtain a palindrome (90909099090909).

The spelling of 121201011011212 in words is "one hundred twenty-one trillion, two hundred one billion, eleven million, eleven thousand, two hundred twelve".