20221020021229 has 2 divisors, whose sum is σ = 20221020021230. Its totient is φ = 20221020021228.

The previous prime is 20221020021197. The next prime is 20221020021233. The reversal of 20221020021229 is 92212002012202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19935126625129 + 285893396100 = 4464877^2 + 534690^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221020021229 - 2⁵ = 20221020021197 is a prime.

It is a super-2 number, since 2×20221020021229² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221020021289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110510010614 + 10110510010615.

It is an arithmetic number, because the mean of its divisors is an integer number (10110510010615).

Almost surely, 2^{20221020021229} is an apocalyptic number.

It is an amenable number.

20221020021229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221020021229 is an equidigital number, since it uses as much as digits as its factorization.

20221020021229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 20221020021229 in words is "twenty trillion, two hundred twenty-one billion, twenty million, twenty-one thousand, two hundred twenty-nine".