121121202201 has 16 divisors (see below), whose sum is σ = 161913427200. Its totient is φ = 80538325760.

The previous prime is 121121202193. The next prime is 121121202227. The reversal of 121121202201 is 102202121121.

It is a cyclic number.

It is not a de Polignac number, because 121121202201 - 2³ = 121121202193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121121202281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5799025 + ... + 5819873.

It is an arithmetic number, because the mean of its divisors is an integer number (10119589200).

Almost surely, 2^121121202201 is an apocalyptic number.

It is an amenable number.

121121202201 is a deficient number, since it is larger than the sum of its proper divisors (40792224999).

121121202201 is a wasteful number, since it uses less digits than its factorization.

121121202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25776.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121121202201 its reverse (102202121121), we get a palindrome (223323323322).

The spelling of 121121202201 in words is "one hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, two hundred one".