11012220001211 has 32 divisors (see below), whose sum is σ = 13130082298368. Its totient is φ = 9104396797440.

The previous prime is 11012220001177. The next prime is 11012220001243. The reversal of 11012220001211 is 11210002221011.

It is a cyclic number.

It is not a de Polignac number, because 11012220001211 - 2¹⁸ = 11012219739067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012220001411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658160 + ... + 4738946.

It is an arithmetic number, because the mean of its divisors is an integer number (410315071824).

Almost surely, 2^{11012220001211} is an apocalyptic number.

11012220001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11012220001211 is a deficient number, since it is larger than the sum of its proper divisors (2117862297157).

11012220001211 is a wasteful number, since it uses less digits than its factorization.

11012220001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081091.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11012220001211 its reverse (11210002221011), we get a palindrome (22222222222222).

The spelling of 11012220001211 in words is "eleven trillion, twelve billion, two hundred twenty million, one thousand, two hundred eleven".