11211222012101 has 16 divisors (see below), whose sum is σ = 11610604827648. Its totient is φ = 10814204582400.

The previous prime is 11211222012077. The next prime is 11211222012119. The reversal of 11211222012101 is 10121022211211.

It is a cyclic number.

It is not a de Polignac number, because 11211222012101 - 2¹⁴ = 11211221995717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211222012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211222012131) 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, 102057461 + ... + 102167253.

It is an arithmetic number, because the mean of its divisors is an integer number (725662801728).

Almost surely, 2^{11211222012101} is an apocalyptic number.

It is an amenable number.

11211222012101 is a deficient number, since it is larger than the sum of its proper divisors (399382815547).

11211222012101 is a wasteful number, since it uses less digits than its factorization.

11211222012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120532.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11211222012101 its reverse (10121022211211), we get a palindrome (21332244223312).

The spelling of 11211222012101 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, twelve thousand, one hundred one".