21022011012211 has 8 divisors (see below), whose sum is σ = 22933164600000. Its totient is φ = 19110867704040.

The previous prime is 21022011012203. The next prime is 21022011012257. The reversal of 21022011012211 is 11221011022012.

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 21022011012211 - 2³ = 21022011012203 is a prime.

It is a super-2 number, since 2×21022011012211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022011012511) 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, 2070340 + ... + 6806638.

It is an arithmetic number, because the mean of its divisors is an integer number (2866645575000).

Almost surely, 2^{21022011012211} is an apocalyptic number.

21022011012211 is a deficient number, since it is larger than the sum of its proper divisors (1911153587789).

21022011012211 is a wasteful number, since it uses less digits than its factorization.

21022011012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139809.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21022011012211 its reverse (11221011022012), we get a palindrome (32243022034223).

The spelling of 21022011012211 in words is "twenty-one trillion, twenty-two billion, eleven million, twelve thousand, two hundred eleven".