21112224301202 has 4 divisors (see below), whose sum is σ = 31668336451806. Its totient is φ = 10556112150600.

The previous prime is 21112224301171. The next prime is 21112224301211. The reversal of 21112224301202 is 20210342221112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16338257127721 + 4773967173481 = 4042061^2 + 2184941^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5278056075299 + ... + 5278056075302.

Almost surely, 2^{21112224301202} is an apocalyptic number.

21112224301202 is a deficient number, since it is larger than the sum of its proper divisors (10556112150604).

21112224301202 is a wasteful number, since it uses less digits than its factorization.

21112224301202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556112150603.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21112224301202 its reverse (20210342221112), we get a palindrome (41322566522314).

The spelling of 21112224301202 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty-four million, three hundred one thousand, two hundred two".