20122444221011 has 16 divisors (see below), whose sum is σ = 22368683962368. Its totient is φ = 17945776898400.

The previous prime is 20122444220969. The next prime is 20122444221049. The reversal of 20122444221011 is 11012244422102.

It is a cyclic number.

It is not a de Polignac number, because 20122444221011 - 2³⁰ = 20121370479187 is a prime.

It is a super-2 number, since 2×20122444221011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122444226011) 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, 2651630 + ... + 6875756.

It is an arithmetic number, because the mean of its divisors is an integer number (1398042747648).

Almost surely, 2^{20122444221011} is an apocalyptic number.

20122444221011 is a deficient number, since it is larger than the sum of its proper divisors (2246239741357).

20122444221011 is a wasteful number, since it uses less digits than its factorization.

20122444221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232362.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 20122444221011 its reverse (11012244422102), we get a palindrome (31134688643113).

It can be divided in two parts, 2012244422101 and 1, that added together give a palindrome (2012244422102).

The spelling of 20122444221011 in words is "twenty trillion, one hundred twenty-two billion, four hundred forty-four million, two hundred twenty-one thousand, eleven".