22120202121211 has 16 divisors (see below), whose sum is σ = 22268554953120. Its totient is φ = 21972093546240.

The previous prime is 22120202121203. The next prime is 22120202121217. The reversal of 22120202121211 is 11212120202122.

It is a cyclic number.

It is not a de Polignac number, because 22120202121211 - 2³ = 22120202121203 is a prime.

It is a super-2 number, since 2×22120202121211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120202121217) 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, 1119263616 + ... + 1119283378.

It is an arithmetic number, because the mean of its divisors is an integer number (1391784684570).

Almost surely, 2^{22120202121211} is an apocalyptic number.

22120202121211 is a deficient number, since it is larger than the sum of its proper divisors (148352831909).

22120202121211 is a wasteful number, since it uses less digits than its factorization.

22120202121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25566.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22120202121211 its reverse (11212120202122), we get a palindrome (33332322323333).

The spelling of 22120202121211 in words is "twenty-two trillion, one hundred twenty billion, two hundred two million, one hundred twenty-one thousand, two hundred eleven".