121212211010201 has 8 divisors (see below), whose sum is σ = 123791517368064. Its totient is φ = 118632918116800.

The previous prime is 121212211010161. The next prime is 121212211010207. The reversal of 121212211010201 is 102010112212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121212211010201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121212211010201.

It is not an unprimeable number, because it can be changed into a prime (121212211010207) 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, 16003601 + ... + 22328001.

It is an arithmetic number, because the mean of its divisors is an integer number (15473939671008).

Almost surely, 2^{121212211010201} is an apocalyptic number.

It is an amenable number.

121212211010201 is a deficient number, since it is larger than the sum of its proper divisors (2579306357863).

121212211010201 is an equidigital number, since it uses as much as digits as its factorization.

121212211010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732231.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121212211010201 its reverse (102010112212121), we get a palindrome (223222323222322).

The spelling of 121212211010201 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred eleven million, ten thousand, two hundred one".