11211202211001 has 16 divisors (see below), whose sum is σ = 16098199434240. Its totient is φ = 6899174392320.

The previous prime is 11211202210979. The next prime is 11211202211021. The reversal of 11211202211001 is 10011220211211.

It is a happy number.

It is not a de Polignac number, because 11211202211001 - 2²⁶ = 11211135102137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211202211021) 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, 14997961 + ... + 15727721.

It is an arithmetic number, because the mean of its divisors is an integer number (1006137464640).

Almost surely, 2^{11211202211001} is an apocalyptic number.

It is an amenable number.

11211202211001 is a deficient number, since it is larger than the sum of its proper divisors (4886997223239).

11211202211001 is a wasteful number, since it uses less digits than its factorization.

11211202211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123696.

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

Adding to 11211202211001 its reverse (10011220211211), we get a palindrome (21222422422212).

The spelling of 11211202211001 in words is "eleven trillion, two hundred eleven billion, two hundred two million, two hundred eleven thousand, one".