22151010 has 64 divisors (see below), whose sum is σ = 61132032. Its totient is φ = 5031936.

The previous prime is 22150993. The next prime is 22151011. The reversal of 22151010 is 1015122.

It is not an unprimeable number, because it can be changed into a prime (22151011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65562 + ... + 65898.

It is an arithmetic number, because the mean of its divisors is an integer number (955188).

Almost surely, 2^22151010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22151010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30566016).

22151010 is an abundant number, since it is smaller than the sum of its proper divisors (38981022).

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

22151010 is a wasteful number, since it uses less digits than its factorization.

22151010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 22151010 is about 4706.4859502606. The cubic root of 22151010 is about 280.8435868330.

Adding to 22151010 its reverse (1015122), we get a palindrome (23166132).

The spelling of 22151010 in words is "twenty-two million, one hundred fifty-one thousand, ten".