20221141 has 2 divisors, whose sum is σ = 20221142. Its totient is φ = 20221140.

The previous prime is 20221133. The next prime is 20221147. The reversal of 20221141 is 14112202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16573041 + 3648100 = 4071^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221141 - 2³ = 20221133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110570 + 10110571.

It is an arithmetic number, because the mean of its divisors is an integer number (10110571).

Almost surely, 2^20221141 is an apocalyptic number.

It is an amenable number.

20221141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221141 is an equidigital number, since it uses as much as digits as its factorization.

20221141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 20221141 is about 4496.7923011854. The cubic root of 20221141 is about 272.4385451855.

Adding to 20221141 its reverse (14112202), we get a palindrome (34333343).

The spelling of 20221141 in words is "twenty million, two hundred twenty-one thousand, one hundred forty-one".