121212202201 has 8 divisors (see below), whose sum is σ = 121518555840. Its totient is φ = 120906220848.

The previous prime is 121212202183. The next prime is 121212202211. The reversal of 121212202201 is 102202212121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121212202201 - 2⁷ = 121212202073 is a prime.

It is a super-2 number, since 2×121212202201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121212202211) 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, 564780 + ... + 749266.

It is an arithmetic number, because the mean of its divisors is an integer number (15189819480).

Almost surely, 2^121212202201 is an apocalyptic number.

It is an amenable number.

121212202201 is a deficient number, since it is larger than the sum of its proper divisors (306353639).

121212202201 is an equidigital number, since it uses as much as digits as its factorization.

121212202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186143.

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

Adding to 121212202201 its reverse (102202212121), we get a palindrome (223414414322).

The spelling of 121212202201 in words is "one hundred twenty-one billion, two hundred twelve million, two hundred two thousand, two hundred one".