20222011121221 has 16 divisors (see below), whose sum is σ = 24896399842944. Its totient is φ = 15994837479744.

The previous prime is 20222011121177. The next prime is 20222011121239. The reversal of 20222011121221 is 12212111022202.

It is a cyclic number.

It is not a de Polignac number, because 20222011121221 - 2¹⁷ = 20222010990149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222011127221) 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, 34397866 + ... + 34980811.

It is an arithmetic number, because the mean of its divisors is an integer number (1556024990184).

Almost surely, 2^{20222011121221} is an apocalyptic number.

It is an amenable number.

20222011121221 is a deficient number, since it is larger than the sum of its proper divisors (4674388721723).

20222011121221 is a wasteful number, since it uses less digits than its factorization.

20222011121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69381900.

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

Adding to 20222011121221 its reverse (12212111022202), we get a palindrome (32434122143423).

The spelling of 20222011121221 in words is "twenty trillion, two hundred twenty-two billion, eleven million, one hundred twenty-one thousand, two hundred twenty-one".