1001022022157 has 2 divisors, whose sum is σ = 1001022022158. Its totient is φ = 1001022022156.

The previous prime is 1001022022129. The next prime is 1001022022177. The reversal of 1001022022157 is 7512202201001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 962068684201 + 38953337956 = 980851^2 + 197366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001022022157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001022022177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500511011078 + 500511011079.

It is an arithmetic number, because the mean of its divisors is an integer number (500511011079).

Almost surely, 2^{1001022022157} is an apocalyptic number.

It is an amenable number.

1001022022157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001022022157 is an equidigital number, since it uses as much as digits as its factorization.

1001022022157 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 1001022022157 its reverse (7512202201001), we get a palindrome (8513224223158).

The spelling of 1001022022157 in words is "one trillion, one billion, twenty-two million, twenty-two thousand, one hundred fifty-seven".