1322021334420 has 36 divisors (see below), whose sum is σ = 4010131381620. Its totient is φ = 352539022464.

The previous prime is 1322021334391. The next prime is 1322021334437. The reversal of 1322021334420 is 244331202231.

1322021334420 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 0 + 213 + 3 + 442 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 507630600324 + 814390734096 = 712482^2 + 902436^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3672281305 + ... + 3672281664.

Almost surely, 2^{1322021334420} is an apocalyptic number.

1322021334420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322021334420 is an abundant number, since it is smaller than the sum of its proper divisors (2688110047200).

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

1322021334420 is a wasteful number, since it uses less digits than its factorization.

1322021334420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344562984 (or 7344562979 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1322021334420 its reverse (244331202231), we get a palindrome (1566352536651).

The spelling of 1322021334420 in words is "one trillion, three hundred twenty-two billion, twenty-one million, three hundred thirty-four thousand, four hundred twenty".