21122225419 has 2 divisors, whose sum is σ = 21122225420. Its totient is φ = 21122225418.

The previous prime is 21122225407. The next prime is 21122225431. The reversal of 21122225419 is 91452222112.

It is a balanced prime because it is at equal distance from previous prime (21122225407) and next prime (21122225431).

It is a cyclic number.

It is not a de Polignac number, because 21122225419 - 2¹⁹ = 21121701131 is a prime.

It is a super-2 number, since 2×21122225419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21122225459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561112709 + 10561112710.

It is an arithmetic number, because the mean of its divisors is an integer number (10561112710).

Almost surely, 2^21122225419 is an apocalyptic number.

21122225419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122225419 is an equidigital number, since it uses as much as digits as its factorization.

21122225419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The spelling of 21122225419 in words is "twenty-one billion, one hundred twenty-two million, two hundred twenty-five thousand, four hundred nineteen".