121220202102211 has 8 divisors (see below), whose sum is σ = 122293545631920. Its totient is φ = 120146869070592.

The previous prime is 121220202102187. The next prime is 121220202102227. The reversal of 121220202102211 is 112201202022121.

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-121220202102211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220202102911) 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, 21553191 + ... + 26589103.

It is an arithmetic number, because the mean of its divisors is an integer number (15286693203990).

Almost surely, 2^{121220202102211} is an apocalyptic number.

121220202102211 is a deficient number, since it is larger than the sum of its proper divisors (1073343529709).

121220202102211 is a wasteful number, since it uses less digits than its factorization.

121220202102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249045.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121220202102211 its reverse (112201202022121), we get a palindrome (233421404124332).

The spelling of 121220202102211 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred two million, one hundred two thousand, two hundred eleven".