222010021157 has 2 divisors, whose sum is σ = 222010021158. Its totient is φ = 222010021156.

The previous prime is 222010021151. The next prime is 222010021199. The reversal of 222010021157 is 751120010222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173748082561 + 48261938596 = 416831^2 + 219686^2 .

It is a cyclic number.

It is not a de Polignac number, because 222010021157 - 2⁴ = 222010021141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222010021151) 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, 111005010578 + 111005010579.

It is an arithmetic number, because the mean of its divisors is an integer number (111005010579).

Almost surely, 2^222010021157 is an apocalyptic number.

It is an amenable number.

222010021157 is a deficient number, since it is larger than the sum of its proper divisors (1).

222010021157 is an equidigital number, since it uses as much as digits as its factorization.

222010021157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 222010021157 its reverse (751120010222), we get a palindrome (973130031379).

The spelling of 222010021157 in words is "two hundred twenty-two billion, ten million, twenty-one thousand, one hundred fifty-seven".