22021000011 has 8 divisors (see below), whose sum is σ = 32623703760. Its totient is φ = 14680666656.

The previous prime is 22020999991. The next prime is 22021000021. The reversal of 22021000011 is 11000012022.

It is not a de Polignac number, because 22021000011 - 2¹³ = 22020991819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22020999957 and 22021000002.

It is not an unprimeable number, because it can be changed into a prime (22021000021) 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, 407796270 + ... + 407796323.

It is an arithmetic number, because the mean of its divisors is an integer number (4077962970).

Almost surely, 2^22021000011 is an apocalyptic number.

22021000011 is a deficient number, since it is larger than the sum of its proper divisors (10602703749).

22021000011 is an equidigital number, since it uses as much as digits as its factorization.

22021000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815592602 (or 815592596 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22021000011 its reverse (11000012022), we get a palindrome (33021012033).

The spelling of 22021000011 in words is "twenty-two billion, twenty-one million, eleven", and thus it is an aban number and an uban number.