21330132300004 has 36 divisors (see below), whose sum is σ = 41406074271100. Its totient is φ = 9606564982080.

The previous prime is 21330132299981. The next prime is 21330132300091. The reversal of 21330132300004 is 40000323103312.

It can be written as a sum of positive squares in 2 ways, for example, as 12940941411904 + 8389190888100 = 3597352^2 + 2896410^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 202105599 + ... + 202211110.

Almost surely, 2^{21330132300004} is an apocalyptic number.

It is an amenable number.

21330132300004 is a deficient number, since it is larger than the sum of its proper divisors (20075941971096).

21330132300004 is a wasteful number, since it uses less digits than its factorization.

21330132300004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404316844 (or 404316831 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21330132300004 its reverse (40000323103312), we get a palindrome (61330455403316).

The spelling of 21330132300004 in words is "twenty-one trillion, three hundred thirty billion, one hundred thirty-two million, three hundred thousand, four".