11211022001211 has 32 divisors (see below), whose sum is σ = 15493546728000. Its totient is φ = 7202269175808.

The previous prime is 11211022001131. The next prime is 11211022001233. The reversal of 11211022001211 is 11210022011211.

It is a happy number.

It is not a de Polignac number, because 11211022001211 - 2⁷ = 11211022001083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211022001261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117952075 + ... + 118047083.

It is an arithmetic number, because the mean of its divisors is an integer number (484173335250).

Almost surely, 2^{11211022001211} is an apocalyptic number.

11211022001211 is a deficient number, since it is larger than the sum of its proper divisors (4282524726789).

11211022001211 is a wasteful number, since it uses less digits than its factorization.

11211022001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97663.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11211022001211 its reverse (11210022011211), we get a palindrome (22421044012422).

The spelling of 11211022001211 in words is "eleven trillion, two hundred eleven billion, twenty-two million, one thousand, two hundred eleven".