20022021021061 has 2 divisors, whose sum is σ = 20022021021062. Its totient is φ = 20022021021060.

The previous prime is 20022021021053. The next prime is 20022021021137. The reversal of 20022021021061 is 16012012022002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13852167422500 + 6169853598561 = 3721850^2 + 2483919^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022021021061 - 2³ = 20022021021053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20022021001061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011010510530 + 10011010510531.

It is an arithmetic number, because the mean of its divisors is an integer number (10011010510531).

Almost surely, 2^{20022021021061} is an apocalyptic number.

It is an amenable number.

20022021021061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022021021061 is an equidigital number, since it uses as much as digits as its factorization.

20022021021061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20022021021061 its reverse (16012012022002), we get a palindrome (36034033043063).

The spelling of 20022021021061 in words is "twenty trillion, twenty-two billion, twenty-one million, twenty-one thousand, sixty-one".