1222425550340 has 96 divisors (see below), whose sum is σ = 2712597189120. Its totient is φ = 461455335936.

The previous prime is 1222425550211. The next prime is 1222425550349. The reversal of 1222425550340 is 430555242221.

It is a happy number.

It is a super-2 number, since 2×1222425550340² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222425550340.

It is not an unprimeable number, because it can be changed into a prime (1222425550349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247301909 + ... + 247306851.

It is an arithmetic number, because the mean of its divisors is an integer number (28256220720).

Almost surely, 2^{1222425550340} is an apocalyptic number.

1222425550340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222425550340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356298594560).

1222425550340 is an abundant number, since it is smaller than the sum of its proper divisors (1490171638780).

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

1222425550340 is a wasteful number, since it uses less digits than its factorization.

1222425550340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7341 (or 7339 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 1222425550340 in words is "one trillion, two hundred twenty-two billion, four hundred twenty-five million, five hundred fifty thousand, three hundred forty".