20022021024121 has 2 divisors, whose sum is σ = 20022021024122. Its totient is φ = 20022021024120.

The previous prime is 20022021024113. The next prime is 20022021024191. The reversal of 20022021024121 is 12142012022002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12235577247721 + 7786443776400 = 3497939^2 + 2790420^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022021024121 - 2³ = 20022021024113 is a prime.

It is not a weakly prime, because it can be changed into another prime (20022021024101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011010512060 + 10011010512061.

It is an arithmetic number, because the mean of its divisors is an integer number (10011010512061).

Almost surely, 2^{20022021024121} is an apocalyptic number.

It is an amenable number.

20022021024121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022021024121 is an equidigital number, since it uses as much as digits as its factorization.

20022021024121 is an evil number, because the sum of its binary digits is even.

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

Adding to 20022021024121 its reverse (12142012022002), we get a palindrome (32164033046123).

The spelling of 20022021024121 in words is "twenty trillion, twenty-two billion, twenty-one million, twenty-four thousand, one hundred twenty-one".