221002220201211 has 6 divisors (see below), whose sum is σ = 319225429179540. Its totient is φ = 147334813467468.

The previous prime is 221002220201153. The next prime is 221002220201219. The reversal of 221002220201211 is 112102022200122.

It is a happy number.

221002220201211 is a `hidden beast` number, since 2 + 210 + 0 + 2 + 220 + 20 + 1 + 211 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-221002220201211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221002220201219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12277901122281 + ... + 12277901122298.

It is an arithmetic number, because the mean of its divisors is an integer number (53204238196590).

Almost surely, 2^{221002220201211} is an apocalyptic number.

221002220201211 is a deficient number, since it is larger than the sum of its proper divisors (98223208978329).

221002220201211 is a wasteful number, since it uses less digits than its factorization.

221002220201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24555802244585 (or 24555802244582 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221002220201211 its reverse (112102022200122), we get a palindrome (333104242401333).

The spelling of 221002220201211 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, two hundred one thousand, two hundred eleven".