21022020201002 has 16 divisors (see below), whose sum is σ = 31761223873152. Its totient is φ = 10435219683840.

The previous prime is 21022020201001. The next prime is 21022020201053. The reversal of 21022020201002 is 20010202022012.

It is not an unprimeable number, because it can be changed into a prime (21022020201001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68373143 + ... + 68679914.

It is an arithmetic number, because the mean of its divisors is an integer number (1985076492072).

Almost surely, 2^{21022020201002} is an apocalyptic number.

21022020201002 is a deficient number, since it is larger than the sum of its proper divisors (10739203672150).

21022020201002 is a wasteful number, since it uses less digits than its factorization.

21022020201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137053613.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21022020201002 its reverse (20010202022012), we get a palindrome (41032222223014).

The spelling of 21022020201002 in words is "twenty-one trillion, twenty-two billion, twenty million, two hundred one thousand, two".