1120000012129 has 2 divisors, whose sum is σ = 1120000012130. Its totient is φ = 1120000012128.

The previous prime is 1120000012081. The next prime is 1120000012207. The reversal of 1120000012129 is 9212100000211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872593252129 + 247406760000 = 934127^2 + 497400^2 .

It is an emirp because it is prime and its reverse (9212100000211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120000012129 - 2¹¹ = 1120000010081 is a prime.

It is a super-2 number, since 2×1120000012129² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1120000312129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560000006064 + 560000006065.

It is an arithmetic number, because the mean of its divisors is an integer number (560000006065).

Almost surely, 2^{1120000012129} is an apocalyptic number.

It is an amenable number.

1120000012129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120000012129 is an equidigital number, since it uses as much as digits as its factorization.

1120000012129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 1120000012129 in words is "one trillion, one hundred twenty billion, twelve thousand, one hundred twenty-nine".