21202202202011 has 8 divisors (see below), whose sum is σ = 21937866081120. Its totient is φ = 20466841886848.

The previous prime is 21202202201989. The next prime is 21202202202037. The reversal of 21202202202011 is 11020220220212.

It is a happy number.

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

It is not a de Polignac number, because 21202202202011 - 2¹⁴ = 21202202185627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202202202911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75748871 + ... + 76028256.

It is an arithmetic number, because the mean of its divisors is an integer number (2742233260140).

Almost surely, 2^{21202202202011} is an apocalyptic number.

21202202202011 is a deficient number, since it is larger than the sum of its proper divisors (735663879109).

21202202202011 is a wasteful number, since it uses less digits than its factorization.

21202202202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151781973.

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

Adding to 21202202202011 its reverse (11020220220212), we get a palindrome (32222422422223).

The spelling of 21202202202011 in words is "twenty-one trillion, two hundred two billion, two hundred two million, two hundred two thousand, eleven".