2134102124221 has 2 divisors, whose sum is σ = 2134102124222. Its totient is φ = 2134102124220.

The previous prime is 2134102124201. The next prime is 2134102124233. The reversal of 2134102124221 is 1224212014312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1343756232025 + 790345892196 = 1159205^2 + 889014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134102124221 - 2²¹ = 2134100027069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2134102124201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067051062110 + 1067051062111.

It is an arithmetic number, because the mean of its divisors is an integer number (1067051062111).

Almost surely, 2^{2134102124221} is an apocalyptic number.

It is an amenable number.

2134102124221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134102124221 is an equidigital number, since it uses as much as digits as its factorization.

2134102124221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 2134102124221 its reverse (1224212014312), we get a palindrome (3358314138533).

The spelling of 2134102124221 in words is "two trillion, one hundred thirty-four billion, one hundred two million, one hundred twenty-four thousand, two hundred twenty-one".