22101012211 has 4 divisors (see below), whose sum is σ = 23264223400. Its totient is φ = 20937801024.

The previous prime is 22101012191. The next prime is 22101012217. The reversal of 22101012211 is 11221010122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22101012211 - 2¹³ = 22101004019 is a prime.

It is a super-2 number, since 2×22101012211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101012191 and 22101012200.

It is not an unprimeable number, because it can be changed into a prime (22101012217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581605566 + ... + 581605603.

It is an arithmetic number, because the mean of its divisors is an integer number (5816055850).

Almost surely, 2^22101012211 is an apocalyptic number.

22101012211 is a deficient number, since it is larger than the sum of its proper divisors (1163211189).

22101012211 is a wasteful number, since it uses less digits than its factorization.

22101012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163211188.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22101012211 its reverse (11221010122), we get a palindrome (33322022333).

It can be divided in two parts, 221010122 and 11, that multiplied together give a palindrome (2431111342).

The spelling of 22101012211 in words is "twenty-two billion, one hundred one million, twelve thousand, two hundred eleven".