121200220011212 has 6 divisors (see below), whose sum is σ = 212100385019628. Its totient is φ = 60600110005604.

The previous prime is 121200220011203. The next prime is 121200220011239. The reversal of 121200220011212 is 212110022002121.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15150027501398 + ... + 15150027501405.

It is an arithmetic number, because the mean of its divisors is an integer number (35350064169938).

Almost surely, 2^{121200220011212} is an apocalyptic number.

It is an amenable number.

121200220011212 is a deficient number, since it is larger than the sum of its proper divisors (90900165008416).

121200220011212 is a wasteful number, since it uses less digits than its factorization.

121200220011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30300055002807 (or 30300055002805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121200220011212 its reverse (212110022002121), we get a palindrome (333310242013333).

The spelling of 121200220011212 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty million, eleven thousand, two hundred twelve".