22001020202011 has 4 divisors (see below), whose sum is σ = 22034405665800. Its totient is φ = 21967634738224.

The previous prime is 22001020201987. The next prime is 22001020202027. The reversal of 22001020202011 is 11020202010022.

It is a happy number.

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 22001020202011 - 2¹³ = 22001020193819 is a prime.

It is a super-2 number, since 2×22001020202011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22001020201982 and 22001020202000.

It is not an unprimeable number, because it can be changed into a prime (22001020202911) 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, 16692730906 + ... + 16692732223.

It is an arithmetic number, because the mean of its divisors is an integer number (5508601416450).

Almost surely, 2^{22001020202011} is an apocalyptic number.

22001020202011 is a deficient number, since it is larger than the sum of its proper divisors (33385463789).

22001020202011 is an equidigital number, since it uses as much as digits as its factorization.

22001020202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33385463788.

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

Adding to 22001020202011 its reverse (11020202010022), we get a palindrome (33021222212033).

The spelling of 22001020202011 in words is "twenty-two trillion, one billion, twenty million, two hundred two thousand, eleven".