121220110201212 has 72 divisors (see below), whose sum is σ = 345442064920400. Its totient is φ = 36733366723680.

The previous prime is 121220110201193. The next prime is 121220110201301. The reversal of 121220110201212 is 212102011022121.

121220110201212 is a `hidden beast` number, since 1 + 21 + 220 + 1 + 10 + 201 + 212 = 666.

121220110201212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4638038287 + ... + 4638064422.

Almost surely, 2^{121220110201212} is an apocalyptic number.

121220110201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121220110201212 is an abundant number, since it is smaller than the sum of its proper divisors (224221954719188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121220110201212 is a wasteful number, since it uses less digits than its factorization.

121220110201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276102744 (or 9276102725 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121220110201212 its reverse (212102011022121), we get a palindrome (333322121223333).

The spelling of 121220110201212 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred ten million, two hundred one thousand, two hundred twelve".