2069221157 has 2 divisors, whose sum is σ = 2069221158. Its totient is φ = 2069221156.

The previous prime is 2069221109. The next prime is 2069221171. The reversal of 2069221157 is 7511229602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2057620321 + 11600836 = 45361^2 + 3406^2 .

It is a cyclic number.

It is not a de Polignac number, because 2069221157 - 2⁶ = 2069221093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2069271157) 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, 1034610578 + 1034610579.

It is an arithmetic number, because the mean of its divisors is an integer number (1034610579).

Almost surely, 2^2069221157 is an apocalyptic number.

It is an amenable number.

2069221157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2069221157 is an equidigital number, since it uses as much as digits as its factorization.

2069221157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2069221157 is about 45488.6926279488. The cubic root of 2069221157 is about 1274.2920395200.

The spelling of 2069221157 in words is "two billion, sixty-nine million, two hundred twenty-one thousand, one hundred fifty-seven".