121001222100212 has 12 divisors (see below), whose sum is σ = 213807984682656. Its totient is φ = 59913226476600.

The previous prime is 121001222100191. The next prime is 121001222100217. The reversal of 121001222100212 is 212001222100121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001222100217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146846142914 + ... + 146846143737.

It is an arithmetic number, because the mean of its divisors is an integer number (17817332056888).

Almost surely, 2^{121001222100212} is an apocalyptic number.

It is an amenable number.

121001222100212 is a deficient number, since it is larger than the sum of its proper divisors (92806762582444).

121001222100212 is a wasteful number, since it uses less digits than its factorization.

121001222100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293692286758 (or 293692286756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121001222100212 its reverse (212001222100121), we get a palindrome (333002444200333).

Subtracting 121001222100212 from its reverse (212001222100121), we obtain a palindrome (90999999999909).

The spelling of 121001222100212 in words is "one hundred twenty-one trillion, one billion, two hundred twenty-two million, one hundred thousand, two hundred twelve".