1225021354 has 16 divisors (see below), whose sum is σ = 1924519680. Its totient is φ = 583711920.

The previous prime is 1225021351. The next prime is 1225021379. The reversal of 1225021354 is 4531205221.

It is not an unprimeable number, because it can be changed into a prime (1225021351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36669 + ... + 61600.

It is an arithmetic number, because the mean of its divisors is an integer number (120282480).

Almost surely, 2^1225021354 is an apocalyptic number.

1225021354 is a deficient number, since it is larger than the sum of its proper divisors (699498326).

1225021354 is a wasteful number, since it uses less digits than its factorization.

1225021354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98565.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1225021354 is about 35000.3050558134. The cubic root of 1225021354 is about 1069.9936978113.

Adding to 1225021354 its reverse (4531205221), we get a palindrome (5756226575).

The spelling of 1225021354 in words is "one billion, two hundred twenty-five million, twenty-one thousand, three hundred fifty-four".