21032021133210 has 64 divisors (see below), whose sum is σ = 50574492122112. Its totient is φ = 5597699222016.

The previous prime is 21032021133169. The next prime is 21032021133229. The reversal of 21032021133210 is 1233112023012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36049342 + ... + 36628118.

It is an arithmetic number, because the mean of its divisors is an integer number (790226439408).

Almost surely, 2^{21032021133210} is an apocalyptic number.

21032021133210 is an abundant number, since it is smaller than the sum of its proper divisors (29542470988902).

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

21032021133210 is a wasteful number, since it uses less digits than its factorization.

21032021133210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581127.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21032021133210 its reverse (1233112023012), we get a palindrome (22265133156222).

The spelling of 21032021133210 in words is "twenty-one trillion, thirty-two billion, twenty-one million, one hundred thirty-three thousand, two hundred ten".