121012112211212 has 48 divisors (see below), whose sum is σ = 226339190280000. Its totient is φ = 56413282996224.

The previous prime is 121012112211203. The next prime is 121012112211271. The reversal of 121012112211212 is 212112211210121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16426637 + ... + 22624292.

It is an arithmetic number, because the mean of its divisors is an integer number (4715399797500).

Almost surely, 2^{121012112211212} is an apocalyptic number.

It is an amenable number.

121012112211212 is a deficient number, since it is larger than the sum of its proper divisors (105327078068788).

121012112211212 is a wasteful number, since it uses less digits than its factorization.

121012112211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39051378 (or 39051376 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121012112211212 its reverse (212112211210121), we get a palindrome (333124323421333).

The spelling of 121012112211212 in words is "one hundred twenty-one trillion, twelve billion, one hundred twelve million, two hundred eleven thousand, two hundred twelve".