20021333223132 has 60 divisors (see below), whose sum is σ = 52346698357800. Its totient is φ = 6672887923104.

The previous prime is 20021333223061. The next prime is 20021333223161. The reversal of 20021333223132 is 23132233312002.

20021333223132 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 13 + 332 + 2 + 313 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20021333223096 and 20021333223105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1683507 + ... + 6548042.

It is an arithmetic number, because the mean of its divisors is an integer number (872444972630).

Almost surely, 2^{20021333223132} is an apocalyptic number.

It is an amenable number.

20021333223132 is an abundant number, since it is smaller than the sum of its proper divisors (32325365134668).

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

20021333223132 is a wasteful number, since it uses less digits than its factorization.

20021333223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8239072 (or 8239061 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 20021333223132 its reverse (23132233312002), we get a palindrome (43153566535134).

The spelling of 20021333223132 in words is "twenty trillion, twenty-one billion, three hundred thirty-three million, two hundred twenty-three thousand, one hundred thirty-two".