1213225342 has 32 divisors (see below), whose sum is σ = 2133480384. Its totient is φ = 506572800.

The previous prime is 1213225337. The next prime is 1213225379. The reversal of 1213225342 is 2435223121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780438 + ... + 781990.

It is an arithmetic number, because the mean of its divisors is an integer number (66671262).

Almost surely, 2^1213225342 is an apocalyptic number.

1213225342 is a deficient number, since it is larger than the sum of its proper divisors (920255042).

1213225342 is a wasteful number, since it uses less digits than its factorization.

1213225342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964.

The product of its digits is 2880, while the sum is 25.

The square root of 1213225342 is about 34831.3844398985. The cubic root of 1213225342 is about 1066.5482098706.

Adding to 1213225342 its reverse (2435223121), we get a palindrome (3648448463).

The spelling of 1213225342 in words is "one billion, two hundred thirteen million, two hundred twenty-five thousand, three hundred forty-two".