21220119495713 has 2 divisors, whose sum is σ = 21220119495714. Its totient is φ = 21220119495712.

The previous prime is 21220119495667. The next prime is 21220119495719. The reversal of 21220119495713 is 31759491102212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19302069001744 + 1918050493969 = 4393412^2 + 1384937^2 .

It is a cyclic number.

It is not a de Polignac number, because 21220119495713 - 2⁶ = 21220119495649 is a prime.

It is not a weakly prime, because it can be changed into another prime (21220119495719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610059747856 + 10610059747857.

It is an arithmetic number, because the mean of its divisors is an integer number (10610059747857).

Almost surely, 2^{21220119495713} is an apocalyptic number.

It is an amenable number.

21220119495713 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220119495713 is an equidigital number, since it uses as much as digits as its factorization.

21220119495713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 21220119495713 in words is "twenty-one trillion, two hundred twenty billion, one hundred nineteen million, four hundred ninety-five thousand, seven hundred thirteen".