105221010 has 16 divisors (see below), whose sum is σ = 252530496. Its totient is φ = 28058928.

The previous prime is 105221003. The next prime is 105221023. The reversal of 105221010 is 10122501.

It is a super-2 number, since 2×105221010² = 22142921890840200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753654 + ... + 1753713.

It is an arithmetic number, because the mean of its divisors is an integer number (15783156).

Almost surely, 2^105221010 is an apocalyptic number.

105221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105221010 is an abundant number, since it is smaller than the sum of its proper divisors (147309486).

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

105221010 is a wasteful number, since it uses less digits than its factorization.

105221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507377.

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

The square root of 105221010 is about 10257.7292808886. The cubic root of 105221010 is about 472.1001684610.

Adding to 105221010 its reverse (10122501), we get a palindrome (115343511).

The spelling of 105221010 in words is "one hundred five million, two hundred twenty-one thousand, ten".