21220002110202 has 64 divisors (see below), whose sum is σ = 50557239183360. Its totient is φ = 5810951969856.

The previous prime is 21220002110159. The next prime is 21220002110207. The reversal of 21220002110202 is 20201120002212.

It is not an unprimeable number, because it can be changed into a prime (21220002110207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101799502 + ... + 102007737.

It is an arithmetic number, because the mean of its divisors is an integer number (789956862240).

Almost surely, 2^{21220002110202} is an apocalyptic number.

21220002110202 is an abundant number, since it is smaller than the sum of its proper divisors (29337237073158).

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

21220002110202 is a wasteful number, since it uses less digits than its factorization.

21220002110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203807355.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21220002110202 its reverse (20201120002212), we get a palindrome (41421122112414).

The spelling of 21220002110202 in words is "twenty-one trillion, two hundred twenty billion, two million, one hundred ten thousand, two hundred two".