1011100021219 has 2 divisors, whose sum is σ = 1011100021220. Its totient is φ = 1011100021218.

The previous prime is 1011100021213. The next prime is 1011100021249. The reversal of 1011100021219 is 9121200011101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011100021219 is a prime.

It is a super-2 number, since 2×1011100021219² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011100021196 and 1011100021205.

It is not a weakly prime, because it can be changed into another prime (1011100021213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505550010609 + 505550010610.

It is an arithmetic number, because the mean of its divisors is an integer number (505550010610).

Almost surely, 2^{1011100021219} is an apocalyptic number.

1011100021219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011100021219 is an equidigital number, since it uses as much as digits as its factorization.

1011100021219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 1011100021219 in words is "one trillion, eleven billion, one hundred million, twenty-one thousand, two hundred nineteen".