212021101219 has 2 divisors, whose sum is σ = 212021101220. Its totient is φ = 212021101218.

The previous prime is 212021101183. The next prime is 212021101363. The reversal of 212021101219 is 912101120212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021101219 is a prime.

It is a super-2 number, since 2×212021101219² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212021101219.

It is not a weakly prime, because it can be changed into another prime (212021102219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010550609 + 106010550610.

It is an arithmetic number, because the mean of its divisors is an integer number (106010550610).

Almost surely, 2^212021101219 is an apocalyptic number.

212021101219 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021101219 is an equidigital number, since it uses as much as digits as its factorization.

212021101219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 212021101219 in words is "two hundred twelve billion, twenty-one million, one hundred one thousand, two hundred nineteen".