21221112212119 has 2 divisors, whose sum is σ = 21221112212120. Its totient is φ = 21221112212118.

The previous prime is 21221112212107. The next prime is 21221112212159. The reversal of 21221112212119 is 91121221112212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21221112212119 - 2⁵ = 21221112212087 is a prime.

It is a super-2 number, since 2×21221112212119² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21221112212159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610556106059 + 10610556106060.

It is an arithmetic number, because the mean of its divisors is an integer number (10610556106060).

Almost surely, 2^{21221112212119} is an apocalyptic number.

21221112212119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21221112212119 is an equidigital number, since it uses as much as digits as its factorization.

21221112212119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 28.

The spelling of 21221112212119 in words is "twenty-one trillion, two hundred twenty-one billion, one hundred twelve million, two hundred twelve thousand, one hundred nineteen".