10226979109 has 2 divisors, whose sum is σ = 10226979110. Its totient is φ = 10226979108.

The previous prime is 10226979041. The next prime is 10226979127. The reversal of 10226979109 is 90197962201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6388804900 + 3838174209 = 79930^2 + 61953^2 .

It is an emirp because it is prime and its reverse (90197962201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10226979109 - 2²⁵ = 10193424677 is a prime.

It is a super-2 number, since 2×10226979109² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10226979809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5113489554 + 5113489555.

It is an arithmetic number, because the mean of its divisors is an integer number (5113489555).

Almost surely, 2^10226979109 is an apocalyptic number.

It is an amenable number.

10226979109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10226979109 is an equidigital number, since it uses as much as digits as its factorization.

10226979109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 10226979109 in words is "ten billion, two hundred twenty-six million, nine hundred seventy-nine thousand, one hundred nine".