21022021120011 has 8 divisors (see below), whose sum is σ = 28064008420560. Its totient is φ = 13997357283072.

The previous prime is 21022021119977. The next prime is 21022021120031. The reversal of 21022021120011 is 11002112022012.

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

It is not a de Polignac number, because 21022021120011 - 2⁶ = 21022021119947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022021120031) 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, 4330863070 + ... + 4330867923.

It is an arithmetic number, because the mean of its divisors is an integer number (3508001052570).

Almost surely, 2^{21022021120011} is an apocalyptic number.

21022021120011 is a deficient number, since it is larger than the sum of its proper divisors (7041987300549).

21022021120011 is an equidigital number, since it uses as much as digits as its factorization.

21022021120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8661731805.

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

Adding to 21022021120011 its reverse (11002112022012), we get a palindrome (32024133142023).

The spelling of 21022021120011 in words is "twenty-one trillion, twenty-two billion, twenty-one million, one hundred twenty thousand, eleven".