21220119495667 has 2 divisors, whose sum is σ = 21220119495668. Its totient is φ = 21220119495666.

The previous prime is 21220119495649. The next prime is 21220119495713. The reversal of 21220119495667 is 76659491102212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21220119495667 is a prime.

It is not a weakly prime, because it can be changed into another prime (21220119495467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610059747833 + 10610059747834.

It is an arithmetic number, because the mean of its divisors is an integer number (10610059747834).

Almost surely, 2^{21220119495667} is an apocalyptic number.

21220119495667 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220119495667 is an equidigital number, since it uses as much as digits as its factorization.

21220119495667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 21220119495667 in words is "twenty-one trillion, two hundred twenty billion, one hundred nineteen million, four hundred ninety-five thousand, six hundred sixty-seven".