10212111499 has 2 divisors, whose sum is σ = 10212111500. Its totient is φ = 10212111498.

The previous prime is 10212111493. The next prime is 10212111517. The reversal of 10212111499 is 99411121201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10212111499 - 2⁵ = 10212111467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10212111499.

It is not a weakly prime, because it can be changed into another prime (10212111493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106055749 + 5106055750.

It is an arithmetic number, because the mean of its divisors is an integer number (5106055750).

Almost surely, 2^10212111499 is an apocalyptic number.

10212111499 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212111499 is an equidigital number, since it uses as much as digits as its factorization.

10212111499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 10212111499 in words is "ten billion, two hundred twelve million, one hundred eleven thousand, four hundred ninety-nine".