21200201221202 has 8 divisors (see below), whose sum is σ = 31932253292412. Its totient is φ = 10556116790400.

The previous prime is 21200201221123. The next prime is 21200201221259. The reversal of 21200201221202 is 20212210200212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16960469019481 + 4239732201721 = 4118309^2 + 2059061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21991909499 + ... + 21991910462.

Almost surely, 2^{21200201221202} is an apocalyptic number.

21200201221202 is a deficient number, since it is larger than the sum of its proper divisors (10732052071210).

21200201221202 is a wasteful number, since it uses less digits than its factorization.

21200201221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43983820204.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21200201221202 its reverse (20212210200212), we get a palindrome (41412411421414).

The spelling of 21200201221202 in words is "twenty-one trillion, two hundred billion, two hundred one million, two hundred twenty-one thousand, two hundred two".