21202203011 has 8 divisors (see below), whose sum is σ = 23131509744. Its totient is φ = 19273201920.

The previous prime is 21202202977. The next prime is 21202203019. The reversal of 21202203011 is 11030220212.

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 21202203011 - 2¹⁸ = 21201940867 is a prime.

It is a super-2 number, since 2×21202203011² (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 (21202203019) 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, 83135 + ... + 222071.

It is an arithmetic number, because the mean of its divisors is an integer number (2891438718).

Almost surely, 2^21202203011 is an apocalyptic number.

21202203011 is a deficient number, since it is larger than the sum of its proper divisors (1929306733).

21202203011 is a wasteful number, since it uses less digits than its factorization.

21202203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152821.

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

Adding to 21202203011 its reverse (11030220212), we get a palindrome (32232423223).

The spelling of 21202203011 in words is "twenty-one billion, two hundred two million, two hundred three thousand, eleven".