21222211200202 has 16 divisors (see below), whose sum is σ = 32685399863424. Its totient is φ = 10328278876000.

The previous prime is 21222211200181. The next prime is 21222211200277. The reversal of 21222211200202 is 20200211222212.

It is a self number, because there is not a number n which added to its sum of digits gives 21222211200202.

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, 300205324 + ... + 300276007.

It is an arithmetic number, because the mean of its divisors is an integer number (2042837491464).

Almost surely, 2^{21222211200202} is an apocalyptic number.

21222211200202 is a deficient number, since it is larger than the sum of its proper divisors (11463188663222).

21222211200202 is a wasteful number, since it uses less digits than its factorization.

21222211200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600481805.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21222211200202 its reverse (20200211222212), we get a palindrome (41422422422414).

The spelling of 21222211200202 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred eleven million, two hundred thousand, two hundred two".