22001001157 has 2 divisors, whose sum is σ = 22001001158. Its totient is φ = 22001001156.

The previous prime is 22001001107. The next prime is 22001001179. The reversal of 22001001157 is 75110010022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18814511556 + 3186489601 = 137166^2 + 56449^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001001157 - 2¹¹ = 22000999109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22001001107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000500578 + 11000500579.

It is an arithmetic number, because the mean of its divisors is an integer number (11000500579).

Almost surely, 2^22001001157 is an apocalyptic number.

It is an amenable number.

22001001157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001001157 is an equidigital number, since it uses as much as digits as its factorization.

22001001157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

Adding to 22001001157 its reverse (75110010022), we get a palindrome (97111011179).

The spelling of 22001001157 in words is "twenty-two billion, one million, one thousand, one hundred fifty-seven".