21022002030210 has 64 divisors (see below), whose sum is σ = 52697970420480. Its totient is φ = 5356881826560.

The previous prime is 21022002030209. The next prime is 21022002030247. The reversal of 21022002030210 is 1203020022012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21022002030210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14215525 + ... + 15624504.

It is an arithmetic number, because the mean of its divisors is an integer number (823405787820).

Almost surely, 2^{21022002030210} is an apocalyptic number.

21022002030210 is an abundant number, since it is smaller than the sum of its proper divisors (31675968390270).

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

21022002030210 is a wasteful number, since it uses less digits than its factorization.

21022002030210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29841083.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21022002030210 its reverse (1203020022012), we get a palindrome (22225022052222).

The spelling of 21022002030210 in words is "twenty-one trillion, twenty-two billion, two million, thirty thousand, two hundred ten".