20133330221320 has 32 divisors (see below), whose sum is σ = 45381321581400. Its totient is φ = 8038873673728.

The previous prime is 20133330221287. The next prime is 20133330221341. The reversal of 20133330221320 is 2312203333102.

It can be written as a sum of positive squares in 4 ways, for example, as 6801236294724 + 13332093926596 = 2607918^2 + 3651314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451802905 + ... + 451847464.

Almost surely, 2^{20133330221320} is an apocalyptic number.

20133330221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133330221320 is an abundant number, since it is smaller than the sum of its proper divisors (25247991360080).

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

20133330221320 is a wasteful number, since it uses less digits than its factorization.

20133330221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903650937 (or 903650933 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20133330221320 its reverse (2312203333102), we get a palindrome (22445533554422).

The spelling of 20133330221320 in words is "twenty trillion, one hundred thirty-three billion, three hundred thirty million, two hundred twenty-one thousand, three hundred twenty".