22020202211221 has 8 divisors (see below), whose sum is σ = 22226251690944. Its totient is φ = 21814348879680.

The previous prime is 22020202211213. The next prime is 22020202211239. The reversal of 22020202211221 is 12211220202022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22020202211221 - 2³ = 22020202211213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020202211251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48811465 + ... + 49260526.

It is an arithmetic number, because the mean of its divisors is an integer number (2778281461368).

Almost surely, 2^{22020202211221} is an apocalyptic number.

It is an amenable number.

22020202211221 is a deficient number, since it is larger than the sum of its proper divisors (206049479723).

22020202211221 is a wasteful number, since it uses less digits than its factorization.

22020202211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98074091.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22020202211221 its reverse (12211220202022), we get a palindrome (34231422413243).

The spelling of 22020202211221 in words is "twenty-two trillion, twenty billion, two hundred two million, two hundred eleven thousand, two hundred twenty-one".