20221210153 has 2 divisors, whose sum is σ = 20221210154. Its totient is φ = 20221210152.

The previous prime is 20221210073. The next prime is 20221210157. The reversal of 20221210153 is 35101212202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11190889369 + 9030320784 = 105787^2 + 95028^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221210153 - 2²¹ = 20219113001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20221210153.

It is not a weakly prime, because it can be changed into another prime (20221210157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110605076 + 10110605077.

It is an arithmetic number, because the mean of its divisors is an integer number (10110605077).

Almost surely, 2^20221210153 is an apocalyptic number.

It is an amenable number.

20221210153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221210153 is an equidigital number, since it uses as much as digits as its factorization.

20221210153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 20221210153 its reverse (35101212202), we get a palindrome (55322422355).

The spelling of 20221210153 in words is "twenty billion, two hundred twenty-one million, two hundred ten thousand, one hundred fifty-three".