10521226 has 4 divisors (see below), whose sum is σ = 15781842. Its totient is φ = 5260612.

The previous prime is 10521221. The next prime is 10521239. The reversal of 10521226 is 62212501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8404201 + 2117025 = 2899^2 + 1455^2 .

It is a super-2 number, since 2×10521226² = 221392393086152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630305 + ... + 2630308.

Almost surely, 2^10521226 is an apocalyptic number.

10521226 is a deficient number, since it is larger than the sum of its proper divisors (5260616).

10521226 is an equidigital number, since it uses as much as digits as its factorization.

10521226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260615.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 10521226 is about 3243.6439385358. The cubic root of 10521226 is about 219.1234127142.

Adding to 10521226 its reverse (62212501), we get a palindrome (72733727).

It can be divided in two parts, 1052 and 1226, that added together give a triangular number (2278 = T₆₇).

The spelling of 10521226 in words is "ten million, five hundred twenty-one thousand, two hundred twenty-six".