11111021212219 has 2 divisors, whose sum is σ = 11111021212220. Its totient is φ = 11111021212218.

The previous prime is 11111021212177. The next prime is 11111021212229. The reversal of 11111021212219 is 91221212011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111021212219 - 2⁷ = 11111021212091 is a prime.

It is a super-2 number, since 2×11111021212219² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111021212193 and 11111021212202.

It is not a weakly prime, because it can be changed into another prime (11111021212229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555510606109 + 5555510606110.

It is an arithmetic number, because the mean of its divisors is an integer number (5555510606110).

Almost surely, 2^{11111021212219} is an apocalyptic number.

11111021212219 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111021212219 is an equidigital number, since it uses as much as digits as its factorization.

11111021212219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 11111021212219 in words is "eleven trillion, one hundred eleven billion, twenty-one million, two hundred twelve thousand, two hundred nineteen".