211220011017019 has 2 divisors, whose sum is σ = 211220011017020. Its totient is φ = 211220011017018.

The previous prime is 211220011017007. The next prime is 211220011017049. The reversal of 211220011017019 is 910710110022112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211220011017019 - 2⁹ = 211220011016507 is a prime.

It is a super-2 number, since 2×211220011017019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211220011017049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610005508509 + 105610005508510.

It is an arithmetic number, because the mean of its divisors is an integer number (105610005508510).

Almost surely, 2^{211220011017019} is an apocalyptic number.

211220011017019 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220011017019 is an equidigital number, since it uses as much as digits as its factorization.

211220011017019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 211220011017019 in words is "two hundred eleven trillion, two hundred twenty billion, eleven million, seventeen thousand, nineteen".