21202000020210 has 16 divisors (see below), whose sum is σ = 50884800048576. Its totient is φ = 5653866672048.

The previous prime is 21202000020191. The next prime is 21202000020221. The reversal of 21202000020210 is 1202000020212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353366666974 + ... + 353366667033.

It is an arithmetic number, because the mean of its divisors is an integer number (3180300003036).

Almost surely, 2^{21202000020210} is an apocalyptic number.

21202000020210 is an abundant number, since it is smaller than the sum of its proper divisors (29682800028366).

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

21202000020210 is a wasteful number, since it uses less digits than its factorization.

21202000020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706733334017.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21202000020210 its reverse (1202000020212), we get a palindrome (22404000040422).

The spelling of 21202000020210 in words is "twenty-one trillion, two hundred two billion, twenty thousand, two hundred ten".