1213225614 has 96 divisors (see below), whose sum is σ = 2869776000. Its totient is φ = 383582304.

The previous prime is 1213225603. The next prime is 1213225619. The reversal of 1213225614 is 4165223121.

1213225614 is a `hidden beast` number, since 1 + 21 + 3 + 2 + 25 + 614 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213225619) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 830817 + ... + 832275.

It is an arithmetic number, because the mean of its divisors is an integer number (29893500).

Almost surely, 2^1213225614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213225614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434888000).

1213225614 is an abundant number, since it is smaller than the sum of its proper divisors (1656550386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213225614 is a wasteful number, since it uses less digits than its factorization.

1213225614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1552 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1213225614 is about 34831.3883444229. The cubic root of 1213225614 is about 1066.5482895758.

Adding to 1213225614 its reverse (4165223121), we get a palindrome (5378448735).

The spelling of 1213225614 in words is "one billion, two hundred thirteen million, two hundred twenty-five thousand, six hundred fourteen".