22221002011 has 6 divisors (see below), whose sum is σ = 24061795260. Its totient is φ = 20511694008.

The previous prime is 22221001997. The next prime is 22221002047. The reversal of 22221002011 is 11020012222.

It is a happy number.

It is not a de Polignac number, because 22221002011 - 2²³ = 22212613403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22221001982 and 22221002000.

It is not an unprimeable number, because it can be changed into a prime (22221002411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65742441 + ... + 65742778.

It is an arithmetic number, because the mean of its divisors is an integer number (4010299210).

Almost surely, 2^22221002011 is an apocalyptic number.

22221002011 is a deficient number, since it is larger than the sum of its proper divisors (1840793249).

22221002011 is a wasteful number, since it uses less digits than its factorization.

22221002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131485245 (or 131485232 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22221002011 its reverse (11020012222), we get a palindrome (33241014233).

The spelling of 22221002011 in words is "twenty-two billion, two hundred twenty-one million, two thousand, eleven".