22011020010 has 384 divisors, whose sum is σ = 72109440000. Its totient is φ = 4642057728.

The previous prime is 22011019999. The next prime is 22011020023. The reversal of 22011020010 is 1002011022.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22011019974 and 22011020001.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 20589756 + ... + 20590824.

It is an arithmetic number, because the mean of its divisors is an integer number (187785000).

Almost surely, 2^22011020010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22011020010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36054720000).

22011020010 is an abundant number, since it is smaller than the sum of its proper divisors (50098419990).

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

22011020010 is a wasteful number, since it uses less digits than its factorization.

22011020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22011020010 its reverse (1002011022), we get a palindrome (23013031032).

The spelling of 22011020010 in words is "twenty-two billion, eleven million, twenty thousand, ten".