22109010 has 128 divisors (see below), whose sum is σ = 70170624. Its totient is φ = 4316160.

The previous prime is 22108997. The next prime is 22109029. The reversal of 22109010 is 1090122.

22109010 = T₈₆₉ + T₈₇₀ + ... + T₉₂₃.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38989 + ... + 39551.

It is an arithmetic number, because the mean of its divisors is an integer number (548208).

Almost surely, 2^22109010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22109010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35085312).

22109010 is an abundant number, since it is smaller than the sum of its proper divisors (48061614).

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

22109010 is a wasteful number, since it uses less digits than its factorization.

22109010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 22109010 is about 4702.0219055211. The cubic root of 22109010 is about 280.6659742618.

Adding to 22109010 its reverse (1090122), we get a palindrome (23199132).

It can be divided in two parts, 2 and 2109010, that added together give a palindrome (2109012).

The spelling of 22109010 in words is "twenty-two million, one hundred nine thousand, ten".