157053224221 has 2 divisors, whose sum is σ = 157053224222. Its totient is φ = 157053224220.

The previous prime is 157053224203. The next prime is 157053224231. The reversal of 157053224221 is 122422350751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122280298596 + 34772925625 = 349686^2 + 186475^2 .

It is a cyclic number.

It is not a de Polignac number, because 157053224221 - 2⁹ = 157053223709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157053224231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78526612110 + 78526612111.

It is an arithmetic number, because the mean of its divisors is an integer number (78526612111).

Almost surely, 2^157053224221 is an apocalyptic number.

It is an amenable number.

157053224221 is a deficient number, since it is larger than the sum of its proper divisors (1).

157053224221 is an equidigital number, since it uses as much as digits as its factorization.

157053224221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 157053224221 its reverse (122422350751), we get a palindrome (279475574972).

The spelling of 157053224221 in words is "one hundred fifty-seven billion, fifty-three million, two hundred twenty-four thousand, two hundred twenty-one".