22011120012220 has 24 divisors (see below), whose sum is σ = 46874385155808. Its totient is φ = 8680441694400.

The previous prime is 22011120012199. The next prime is 22011120012221. The reversal of 22011120012220 is 2221002111022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22011120012194 and 22011120012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011120012221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7750392951 + ... + 7750395790.

It is an arithmetic number, because the mean of its divisors is an integer number (1953099381492).

Almost surely, 2^{22011120012220} is an apocalyptic number.

22011120012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011120012220 is an abundant number, since it is smaller than the sum of its proper divisors (24863265143588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22011120012220 is a wasteful number, since it uses less digits than its factorization.

22011120012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15500788821 (or 15500788819 counting only the distinct ones).

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

Adding to 22011120012220 its reverse (2221002111022), we get a palindrome (24232122123242).

The spelling of 22011120012220 in words is "twenty-two trillion, eleven billion, one hundred twenty million, twelve thousand, two hundred twenty".