121212200002201 has 64 divisors (see below), whose sum is σ = 152883749376000. Its totient is φ = 93353161248000.

The previous prime is 121212200002169. The next prime is 121212200002247. The reversal of 121212200002201 is 102200002212121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121212200002201 - 2⁵ = 121212200002169 is a prime.

It is a super-2 number, since 2×121212200002201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212200042201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24641632020 + ... + 24641636938.

It is an arithmetic number, because the mean of its divisors is an integer number (2388808584000).

Almost surely, 2^{121212200002201} is an apocalyptic number.

121212200002201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121212200002201 is a deficient number, since it is larger than the sum of its proper divisors (31671549373799).

121212200002201 is a wasteful number, since it uses less digits than its factorization.

121212200002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121212200002201 its reverse (102200002212121), we get a palindrome (223412202214322).

The spelling of 121212200002201 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred million, two thousand, two hundred one".