1225331550630 has 192 divisors, whose sum is σ = 3656574005760. Its totient is φ = 284134213440.

The previous prime is 1225331550623. The next prime is 1225331550637. The reversal of 1225331550630 is 360551335221.

1225331550630 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 3 + 3 + 15 + 5 + 0 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (1225331550623) and next prime (1225331550637).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225331550637) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2532801 + ... + 2977539.

It is an arithmetic number, because the mean of its divisors is an integer number (19044656280).

Almost surely, 2^{1225331550630} is an apocalyptic number.

1225331550630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225331550630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828287002880).

1225331550630 is an abundant number, since it is smaller than the sum of its proper divisors (2431242455130).

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

1225331550630 is a wasteful number, since it uses less digits than its factorization.

1225331550630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444808 (or 444783 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 1225331550630 its reverse (360551335221), we get a palindrome (1585882885851).

The spelling of 1225331550630 in words is "one trillion, two hundred twenty-five billion, three hundred thirty-one million, five hundred fifty thousand, six hundred thirty".