121012100021012 has 24 divisors (see below), whose sum is σ = 212858111854080. Its totient is φ = 60195531140640.

The previous prime is 121012100020969. The next prime is 121012100021023. The reversal of 121012100021012 is 210120001210121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9752837 + ... + 18361427.

It is an arithmetic number, because the mean of its divisors is an integer number (8869087993920).

Almost surely, 2^{121012100021012} is an apocalyptic number.

It is an amenable number.

121012100021012 is a deficient number, since it is larger than the sum of its proper divisors (91846011833068).

121012100021012 is a wasteful number, since it uses less digits than its factorization.

121012100021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8626631 (or 8626629 counting only the distinct ones).

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

Adding to 121012100021012 its reverse (210120001210121), we get a palindrome (331132101231133).

The spelling of 121012100021012 in words is "one hundred twenty-one trillion, twelve billion, one hundred million, twenty-one thousand, twelve".