121112201012 has 12 divisors (see below), whose sum is σ = 231214202016. Its totient is φ = 55051000440.

The previous prime is 121112201009. The next prime is 121112201071. The reversal of 121112201012 is 210102211121.

It is a congruent number.

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, 1376274968 + ... + 1376275055.

It is an arithmetic number, because the mean of its divisors is an integer number (19267850168).

Almost surely, 2^121112201012 is an apocalyptic number.

It is an amenable number.

121112201012 is a deficient number, since it is larger than the sum of its proper divisors (110102001004).

121112201012 is a wasteful number, since it uses less digits than its factorization.

121112201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752550038 (or 2752550036 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121112201012 its reverse (210102211121), we get a palindrome (331214412133).

The spelling of 121112201012 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred one thousand, twelve".