10212101209979 has 2 divisors, whose sum is σ = 10212101209980. Its totient is φ = 10212101209978.

The previous prime is 10212101209963. The next prime is 10212101210023. The reversal of 10212101209979 is 97990210121201.

It is an a-pointer prime, because the next prime (10212101210023) can be obtained adding 10212101209979 to its sum of digits (44).

It is a weak prime.

It is an emirp because it is prime and its reverse (97990210121201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10212101209979 - 2⁴ = 10212101209963 is a prime.

It is a super-2 number, since 2×10212101209979² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10212101209279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106050604989 + 5106050604990.

It is an arithmetic number, because the mean of its divisors is an integer number (5106050604990).

Almost surely, 2^{10212101209979} is an apocalyptic number.

10212101209979 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212101209979 is an equidigital number, since it uses as much as digits as its factorization.

10212101209979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 10212101209979 in words is "ten trillion, two hundred twelve billion, one hundred one million, two hundred nine thousand, nine hundred seventy-nine".