221211429419 has 2 divisors, whose sum is σ = 221211429420. Its totient is φ = 221211429418.

The previous prime is 221211429389. The next prime is 221211429427. The reversal of 221211429419 is 914924112122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221211429419 - 2¹⁶ = 221211363883 is a prime.

It is a super-2 number, since 2×221211429419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221211429449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605714709 + 110605714710.

It is an arithmetic number, because the mean of its divisors is an integer number (110605714710).

Almost surely, 2^221211429419 is an apocalyptic number.

221211429419 is a deficient number, since it is larger than the sum of its proper divisors (1).

221211429419 is an equidigital number, since it uses as much as digits as its factorization.

221211429419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The spelling of 221211429419 in words is "two hundred twenty-one billion, two hundred eleven million, four hundred twenty-nine thousand, four hundred nineteen".