221012119 has 2 divisors, whose sum is σ = 221012120. Its totient is φ = 221012118.

The previous prime is 221012111. The next prime is 221012149. The reversal of 221012119 is 911210122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221012119 - 2³ = 221012111 is a prime.

It is a super-2 number, since 2×221012119² = 97692713489740322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221012096 and 221012105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110506059 + 110506060.

It is an arithmetic number, because the mean of its divisors is an integer number (110506060).

Almost surely, 2^221012119 is an apocalyptic number.

221012119 is a deficient number, since it is larger than the sum of its proper divisors (1).

221012119 is an equidigital number, since it uses as much as digits as its factorization.

221012119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 221012119 is about 14866.4763478102. The cubic root of 221012119 is about 604.6054108005.

The spelling of 221012119 in words is "two hundred twenty-one million, twelve thousand, one hundred nineteen".