11221221012202 has 16 divisors (see below), whose sum is σ = 16920465501960. Its totient is φ = 5581070733312.

The previous prime is 11221221012179. The next prime is 11221221012223. The reversal of 11221221012202 is 20221012212211.

It can be written as a sum of positive squares in 4 ways, for example, as 10756491124681 + 464729887521 = 3279709^2 + 681711^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11221221012202.

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, 3397824 + ... + 5829892.

Almost surely, 2^{11221221012202} is an apocalyptic number.

11221221012202 is a deficient number, since it is larger than the sum of its proper divisors (5699244489758).

11221221012202 is a wasteful number, since it uses less digits than its factorization.

11221221012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444217.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11221221012202 its reverse (20221012212211), we get a palindrome (31442233224413).

The spelling of 11221221012202 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, twelve thousand, two hundred two".