2102210013929 has 2 divisors, whose sum is σ = 2102210013930. Its totient is φ = 2102210013928.

The previous prime is 2102210013881. The next prime is 2102210013991. The reversal of 2102210013929 is 9293100122012.

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., 1964067708304 + 138142305625 = 1401452^2 + 371675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102210013929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102210013895 and 2102210013904.

It is not a weakly prime, because it can be changed into another prime (2102210013829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051105006964 + 1051105006965.

It is an arithmetic number, because the mean of its divisors is an integer number (1051105006965).

Almost surely, 2^{2102210013929} is an apocalyptic number.

It is an amenable number.

2102210013929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102210013929 is an equidigital number, since it uses as much as digits as its factorization.

2102210013929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 2102210013929 in words is "two trillion, one hundred two billion, two hundred ten million, thirteen thousand, nine hundred twenty-nine".