2211261413129 has 2 divisors, whose sum is σ = 2211261413130. Its totient is φ = 2211261413128.

The previous prime is 2211261413117. The next prime is 2211261413147. The reversal of 2211261413129 is 9213141621122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2189275344400 + 21986068729 = 1479620^2 + 148277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211261413129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211261413189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105630706564 + 1105630706565.

It is an arithmetic number, because the mean of its divisors is an integer number (1105630706565).

Almost surely, 2^{2211261413129} is an apocalyptic number.

It is an amenable number.

2211261413129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211261413129 is an equidigital number, since it uses as much as digits as its factorization.

2211261413129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The spelling of 2211261413129 in words is "two trillion, two hundred eleven billion, two hundred sixty-one million, four hundred thirteen thousand, one hundred twenty-nine".