1224210153 has 4 divisors (see below), whose sum is σ = 1632280208. Its totient is φ = 816140100.

The previous prime is 1224210133. The next prime is 1224210161. The reversal of 1224210153 is 3510124221.

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: 3510124221 = 3 ⋅1170041407.

It is not a de Polignac number, because 1224210153 - 2¹³ = 1224201961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224210133) 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, 204035023 + ... + 204035028.

It is an arithmetic number, because the mean of its divisors is an integer number (408070052).

Almost surely, 2^1224210153 is an apocalyptic number.

It is an amenable number.

1224210153 is a deficient number, since it is larger than the sum of its proper divisors (408070055).

1224210153 is an equidigital number, since it uses as much as digits as its factorization.

1224210153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408070054.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1224210153 is about 34988.7146520132. The cubic root of 1224210153 is about 1069.7574647542.

Adding to 1224210153 its reverse (3510124221), we get a palindrome (4734334374).

The spelling of 1224210153 in words is "one billion, two hundred twenty-four million, two hundred ten thousand, one hundred fifty-three".