12121020222211 has 16 divisors (see below), whose sum is σ = 12841792286400. Its totient is φ = 11423740704768.

The previous prime is 12121020222191. The next prime is 12121020222253. The reversal of 12121020222211 is 11222202012121.

It is a cyclic number.

It is not a de Polignac number, because 12121020222211 - 2²³ = 12121011833603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121020282211) 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, 29307871 + ... + 29718568.

It is an arithmetic number, because the mean of its divisors is an integer number (802612017900).

Almost surely, 2^{12121020222211} is an apocalyptic number.

12121020222211 is a deficient number, since it is larger than the sum of its proper divisors (720772064189).

12121020222211 is an equidigital number, since it uses as much as digits as its factorization.

12121020222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59026638.

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

Adding to 12121020222211 its reverse (11222202012121), we get a palindrome (23343222234332).

The spelling of 12121020222211 in words is "twelve trillion, one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, two hundred eleven".