20111102020222 has 4 divisors (see below), whose sum is σ = 30166653030336. Its totient is φ = 10055551010110.

The previous prime is 20111102020123. The next prime is 20111102020223. The reversal of 20111102020222 is 22202020111102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20111102020196 and 20111102020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111102020223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027775505054 + ... + 5027775505057.

It is an arithmetic number, because the mean of its divisors is an integer number (7541663257584).

Almost surely, 2^{20111102020222} is an apocalyptic number.

20111102020222 is a deficient number, since it is larger than the sum of its proper divisors (10055551010114).

20111102020222 is a wasteful number, since it uses less digits than its factorization.

20111102020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055551010113.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20111102020222 its reverse (22202020111102), we get a palindrome (42313122131324).

The spelling of 20111102020222 in words is "twenty trillion, one hundred eleven billion, one hundred two million, twenty thousand, two hundred twenty-two".