121223419 has 2 divisors, whose sum is σ = 121223420. Its totient is φ = 121223418.

The previous prime is 121223411. The next prime is 121223461. The reversal of 121223419 is 914322121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121223419 - 2³ = 121223411 is a prime.

It is a super-2 number, since 2×121223419² = 29390234628099122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121223393 and 121223402.

It is not a weakly prime, because it can be changed into another prime (121223411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611709 + 60611710.

It is an arithmetic number, because the mean of its divisors is an integer number (60611710).

Almost surely, 2^121223419 is an apocalyptic number.

121223419 is a deficient number, since it is larger than the sum of its proper divisors (1).

121223419 is an equidigital number, since it uses as much as digits as its factorization.

121223419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 121223419 is about 11010.1507255805. The cubic root of 121223419 is about 494.9129786147.

The spelling of 121223419 in words is "one hundred twenty-one million, two hundred twenty-three thousand, four hundred nineteen".