22021021210011 has 4 divisors (see below), whose sum is σ = 29361361613352. Its totient is φ = 14680680806672.

The previous prime is 22021021209989. The next prime is 22021021210039. The reversal of 22021021210011 is 11001212012022.

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

It is a cyclic number.

It is not a de Polignac number, because 22021021210011 - 2¹³ = 22021021201819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021021210051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3670170201666 + ... + 3670170201671.

It is an arithmetic number, because the mean of its divisors is an integer number (7340340403338).

Almost surely, 2^{22021021210011} is an apocalyptic number.

22021021210011 is a deficient number, since it is larger than the sum of its proper divisors (7340340403341).

22021021210011 is an equidigital number, since it uses as much as digits as its factorization.

22021021210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340340403340.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22021021210011 its reverse (11001212012022), we get a palindrome (33022233222033).

The spelling of 22021021210011 in words is "twenty-two trillion, twenty-one billion, twenty-one million, two hundred ten thousand, eleven".