21022203011 has 8 divisors (see below), whose sum is σ = 21733899264. Its totient is φ = 20312604360.

The previous prime is 21022202987. The next prime is 21022203023. The reversal of 21022203011 is 11030222012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21022203011 - 2⁶ = 21022202947 is a prime.

It is a super-2 number, since 2×21022203011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022203911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504005 + ... + 544118.

It is an arithmetic number, because the mean of its divisors is an integer number (2716737408).

Almost surely, 2^21022203011 is an apocalyptic number.

21022203011 is a deficient number, since it is larger than the sum of its proper divisors (711696253).

21022203011 is a wasteful number, since it uses less digits than its factorization.

21022203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048801.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21022203011 its reverse (11030222012), we get a palindrome (32052425023).

The spelling of 21022203011 in words is "twenty-one billion, twenty-two million, two hundred three thousand, eleven".