1224402141 has 4 divisors (see below), whose sum is σ = 1632536192. Its totient is φ = 816268092.

The previous prime is 1224402107. The next prime is 1224402149. The reversal of 1224402141 is 1412044221.

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.

It is not a de Polignac number, because 1224402141 - 2⁷ = 1224402013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224402149) 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, 204067021 + ... + 204067026.

It is an arithmetic number, because the mean of its divisors is an integer number (408134048).

Almost surely, 2^1224402141 is an apocalyptic number.

It is an amenable number.

1224402141 is a deficient number, since it is larger than the sum of its proper divisors (408134051).

1224402141 is an equidigital number, since it uses as much as digits as its factorization.

1224402141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408134050.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1224402141 is about 34991.4581148028. The cubic root of 1224402141 is about 1069.8133837646.

Adding to 1224402141 its reverse (1412044221), we get a palindrome (2636446362).

The spelling of 1224402141 in words is "one billion, two hundred twenty-four million, four hundred two thousand, one hundred forty-one".