121212001210201 has 4 divisors (see below), whose sum is σ = 132231274047504. Its totient is φ = 110192728372900.

The previous prime is 121212001210189. The next prime is 121212001210211. The reversal of 121212001210201 is 102012100212121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121212001210201 - 2¹¹ = 121212001208153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212001210211) 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, 5509636418635 + ... + 5509636418656.

It is an arithmetic number, because the mean of its divisors is an integer number (33057818511876).

Almost surely, 2^{121212001210201} is an apocalyptic number.

121212001210201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121212001210201 is a deficient number, since it is larger than the sum of its proper divisors (11019272837303).

121212001210201 is a wasteful number, since it uses less digits than its factorization.

121212001210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019272837302.

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

Adding to 121212001210201 its reverse (102012100212121), we get a palindrome (223224101422322).

The spelling of 121212001210201 in words is "one hundred twenty-one trillion, two hundred twelve billion, one million, two hundred ten thousand, two hundred one".