1322221220340 has 48 divisors (see below), whose sum is σ = 3708462719808. Its totient is φ = 351997725184.

The previous prime is 1322221220339. The next prime is 1322221220351. The reversal of 1322221220340 is 430221222231.

It is a self number, because there is not a number n which added to its sum of digits gives 1322221220340.

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, 18545382 + ... + 18616541.

It is an arithmetic number, because the mean of its divisors is an integer number (77259639996).

Almost surely, 2^{1322221220340} is an apocalyptic number.

1322221220340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322221220340 is an abundant number, since it is smaller than the sum of its proper divisors (2386241499468).

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

1322221220340 is a wasteful number, since it uses less digits than its factorization.

1322221220340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37162528 (or 37162526 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1322221220340 its reverse (430221222231), we get a palindrome (1752442442571).

The spelling of 1322221220340 in words is "one trillion, three hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, three hundred forty".