121211102110012 has 48 divisors (see below), whose sum is σ = 220080072038400. Its totient is φ = 58381379184960.

The previous prime is 121211102110001. The next prime is 121211102110073. The reversal of 121211102110012 is 210011201112121.

It is a super-3 number, since 3×121211102110012³ (a number of 43 digits) contains 333 as substring.

It is a congruent 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, 17218164 + ... + 23213947.

It is an arithmetic number, because the mean of its divisors is an integer number (4585001500800).

Almost surely, 2^{121211102110012} is an apocalyptic number.

It is an amenable number.

121211102110012 is a deficient number, since it is larger than the sum of its proper divisors (98868969928388).

121211102110012 is a wasteful number, since it uses less digits than its factorization.

121211102110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40432426 (or 40432424 counting only the distinct ones).

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

Adding to 121211102110012 its reverse (210011201112121), we get a palindrome (331222303222133).

The spelling of 121211102110012 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred two million, one hundred ten thousand, twelve".