22020221221211 has 16 divisors (see below), whose sum is σ = 22757583175488. Its totient is φ = 21292407628800.

The previous prime is 22020221221133. The next prime is 22020221221223. The reversal of 22020221221211 is 11212212202022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22020221221211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22020221271211) 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, 301622765 + ... + 301695761.

It is an arithmetic number, because the mean of its divisors is an integer number (1422348948468).

Almost surely, 2^{22020221221211} is an apocalyptic number.

22020221221211 is a deficient number, since it is larger than the sum of its proper divisors (737361954277).

22020221221211 is a wasteful number, since it uses less digits than its factorization.

22020221221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138262.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22020221221211 its reverse (11212212202022), we get a palindrome (33232433423233).

The spelling of 22020221221211 in words is "twenty-two trillion, twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred eleven".