11222129873 has 2 divisors, whose sum is σ = 11222129874. Its totient is φ = 11222129872.

The previous prime is 11222129861. The next prime is 11222129903. The reversal of 11222129873 is 37892122211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9740110864 + 1482019009 = 98692^2 + 38497^2 .

It is an emirp because it is prime and its reverse (37892122211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11222129873 - 2¹² = 11222125777 is a prime.

It is a super-2 number, since 2×11222129873² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11222129813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611064936 + 5611064937.

It is an arithmetic number, because the mean of its divisors is an integer number (5611064937).

Almost surely, 2^11222129873 is an apocalyptic number.

It is an amenable number.

11222129873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222129873 is an equidigital number, since it uses as much as digits as its factorization.

11222129873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The spelling of 11222129873 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-nine thousand, eight hundred seventy-three".