212133069448919 has 2 divisors, whose sum is σ = 212133069448920. Its totient is φ = 212133069448918.

The previous prime is 212133069448831. The next prime is 212133069448939. The reversal of 212133069448919 is 919844960331212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212133069448919 is a prime.

It is a super-2 number, since 2×212133069448919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212133069448939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106066534724459 + 106066534724460.

It is an arithmetic number, because the mean of its divisors is an integer number (106066534724460).

Almost surely, 2^{212133069448919} is an apocalyptic number.

212133069448919 is a deficient number, since it is larger than the sum of its proper divisors (1).

212133069448919 is an equidigital number, since it uses as much as digits as its factorization.

212133069448919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 212133069448919 in words is "two hundred twelve trillion, one hundred thirty-three billion, sixty-nine million, four hundred forty-eight thousand, nine hundred nineteen".