1222621341 has 4 divisors (see below), whose sum is σ = 1630161792. Its totient is φ = 815080892.

The previous prime is 1222621333. The next prime is 1222621397. The reversal of 1222621341 is 1431262221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1431262221 = 3 ⋅477087407.

It is a cyclic number.

It is not a de Polignac number, because 1222621341 - 2³ = 1222621333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222621321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203770221 + ... + 203770226.

It is an arithmetic number, because the mean of its divisors is an integer number (407540448).

Almost surely, 2^1222621341 is an apocalyptic number.

It is an amenable number.

1222621341 is a deficient number, since it is larger than the sum of its proper divisors (407540451).

1222621341 is an equidigital number, since it uses as much as digits as its factorization.

1222621341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407540450.

The product of its digits is 1152, while the sum is 24.

The square root of 1222621341 is about 34966.0026454269. The cubic root of 1222621341 is about 1069.2944779857.

Adding to 1222621341 its reverse (1431262221), we get a palindrome (2653883562).

The spelling of 1222621341 in words is "one billion, two hundred twenty-two million, six hundred twenty-one thousand, three hundred forty-one".