21102202000043 has 2 divisors, whose sum is σ = 21102202000044. Its totient is φ = 21102202000042.

The previous prime is 21102201999959. The next prime is 21102202000073. The reversal of 21102202000043 is 34000020220112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21102202000043 - 2¹⁰ = 21102201999019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21102201999985 and 21102202000030.

It is not a weakly prime, because it can be changed into another prime (21102202000073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551101000021 + 10551101000022.

It is an arithmetic number, because the mean of its divisors is an integer number (10551101000022).

Almost surely, 2^{21102202000043} is an apocalyptic number.

21102202000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21102202000043 is an equidigital number, since it uses as much as digits as its factorization.

21102202000043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21102202000043 its reverse (34000020220112), we get a palindrome (55102222220155).

The spelling of 21102202000043 in words is "twenty-one trillion, one hundred two billion, two hundred two million, forty-three", and thus it is an aban number.