22021222022011 has 4 divisors (see below), whose sum is σ = 23180233707400. Its totient is φ = 20862210336624.

The previous prime is 22021222022003. The next prime is 22021222022057. The reversal of 22021222022011 is 11022022212022.

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 22021222022011 - 2³ = 22021222022003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1159011685369 = 22021222022011 / (2 + 2 + 0 + 2 + 1 + 2 + 2 + 2 + 0 + 2 + 2 + 0 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021222022011.

It is not an unprimeable number, because it can be changed into a prime (22021222002011) 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, 579505842666 + ... + 579505842703.

It is an arithmetic number, because the mean of its divisors is an integer number (5795058426850).

Almost surely, 2^{22021222022011} is an apocalyptic number.

22021222022011 is a deficient number, since it is larger than the sum of its proper divisors (1159011685389).

22021222022011 is a wasteful number, since it uses less digits than its factorization.

22021222022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159011685388.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22021222022011 its reverse (11022022212022), we get a palindrome (33043244234033).

The spelling of 22021222022011 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-two million, twenty-two thousand, eleven".