22021021011 has 16 divisors (see below), whose sum is σ = 32347715328. Its totient is φ = 13213932000.

The previous prime is 22021020977. The next prime is 22021021013. The reversal of 22021021011 is 11012012022.

It is not a de Polignac number, because 22021021011 - 2⁶ = 22021020947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021021013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3300151 + ... + 3306816.

It is an arithmetic number, because the mean of its divisors is an integer number (2021732208).

Almost surely, 2^22021021011 is an apocalyptic number.

22021021011 is a deficient number, since it is larger than the sum of its proper divisors (10326694317).

22021021011 is a wasteful number, since it uses less digits than its factorization.

22021021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607082.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22021021011 its reverse (11012012022), we get a palindrome (33033033033).

The spelling of 22021021011 in words is "twenty-two billion, twenty-one million, twenty-one thousand, eleven".