1222421413 has 8 divisors (see below), whose sum is σ = 1260653760. Its totient is φ = 1184772960.

The previous prime is 1222421399. The next prime is 1222421441. The reversal of 1222421413 is 3141242221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222421413 - 2²⁵ = 1188866981 is a prime.

It is a super-2 number, since 2×1222421413² = 2988628221921833138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222421113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141720 + ... + 150097.

It is an arithmetic number, because the mean of its divisors is an integer number (157581720).

Almost surely, 2^1222421413 is an apocalyptic number.

It is an amenable number.

1222421413 is a deficient number, since it is larger than the sum of its proper divisors (38232347).

1222421413 is an equidigital number, since it uses as much as digits as its factorization.

1222421413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291947.

The product of its digits is 768, while the sum is 22.

The square root of 1222421413 is about 34963.1436372647. The cubic root of 1222421413 is about 1069.2361896852.

Adding to 1222421413 its reverse (3141242221), we get a palindrome (4363663634).

The spelling of 1222421413 in words is "one billion, two hundred twenty-two million, four hundred twenty-one thousand, four hundred thirteen".