121210002211 has 4 divisors (see below), whose sum is σ = 121212673624. Its totient is φ = 121207330800.

The previous prime is 121210002209. The next prime is 121210002217. The reversal of 121210002211 is 112200012121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121210002211 - 2¹ = 121210002209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121210002191 and 121210002200.

It is not an unprimeable number, because it can be changed into a prime (121210002217) 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, 1266450 + ... + 1358791.

It is an arithmetic number, because the mean of its divisors is an integer number (30303168406).

Almost surely, 2^121210002211 is an apocalyptic number.

121210002211 is a deficient number, since it is larger than the sum of its proper divisors (2671413).

121210002211 is an equidigital number, since it uses as much as digits as its factorization.

121210002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671412.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121210002211 its reverse (112200012121), we get a palindrome (233410014332).

The spelling of 121210002211 in words is "one hundred twenty-one billion, two hundred ten million, two thousand, two hundred eleven".