20222220012111 has 12 divisors (see below), whose sum is σ = 31456786685688. Its totient is φ = 12444443084304.

The previous prime is 20222220011953. The next prime is 20222220012131. The reversal of 20222220012111 is 11121002222202.

It is a happy number.

It is not a de Polignac number, because 20222220012111 - 2²³ = 20222211623503 is a prime.

It is a super-2 number, since 2×20222220012111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222220012131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86419743525 + ... + 86419743758.

It is an arithmetic number, because the mean of its divisors is an integer number (2621398890474).

Almost surely, 2^{20222220012111} is an apocalyptic number.

20222220012111 is a deficient number, since it is larger than the sum of its proper divisors (11234566673577).

20222220012111 is a wasteful number, since it uses less digits than its factorization.

20222220012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172839487302 (or 172839487299 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20222220012111 its reverse (11121002222202), we get a palindrome (31343222234313).

The spelling of 20222220012111 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty million, twelve thousand, one hundred eleven".