121201102100212 has 24 divisors (see below), whose sum is σ = 216620204887296. Its totient is φ = 59309680099488.

The previous prime is 121201102100203. The next prime is 121201102100213. The reversal of 121201102100212 is 212001201102121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201102100213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654703 + ... + 15583030.

It is an arithmetic number, because the mean of its divisors is an integer number (9025841870304).

Almost surely, 2^{121201102100212} is an apocalyptic number.

It is an amenable number.

121201102100212 is a deficient number, since it is larger than the sum of its proper divisors (95419102787084).

121201102100212 is a wasteful number, since it uses less digits than its factorization.

121201102100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16277487 (or 16277485 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121201102100212 its reverse (212001201102121), we get a palindrome (333202303202333).

The spelling of 121201102100212 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred two million, one hundred thousand, two hundred twelve".