121000112222212 has 12 divisors (see below), whose sum is σ = 220956726666816. Its totient is φ = 57869618888840.

The previous prime is 121000112222071. The next prime is 121000112222221. The reversal of 121000112222212 is 212222211000121.

It is a self number, because there is not a number n which added to its sum of digits gives 121000112222212.

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, 657609305464 + ... + 657609305647.

It is an arithmetic number, because the mean of its divisors is an integer number (18413060555568).

Almost surely, 2^{121000112222212} is an apocalyptic number.

It is an amenable number.

121000112222212 is a deficient number, since it is larger than the sum of its proper divisors (99956614444604).

121000112222212 is a wasteful number, since it uses less digits than its factorization.

121000112222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315218611138 (or 1315218611136 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121000112222212 its reverse (212222211000121), we get a palindrome (333222323222333).

The spelling of 121000112222212 in words is "one hundred twenty-one trillion, one hundred twelve million, two hundred twenty-two thousand, two hundred twelve".