11222031 has 16 divisors (see below), whose sum is σ = 15684608. Its totient is φ = 7128000.

The previous prime is 11222021. The next prime is 11222033. The reversal of 11222031 is 13022211.

It is not a de Polignac number, because 11222031 - 2⁶ = 11221967 is a prime.

It is a super-2 number, since 2×11222031² = 251867959529922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221998 and 11222016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5331 + ... + 7131.

It is an arithmetic number, because the mean of its divisors is an integer number (980288).

Almost surely, 2^11222031 is an apocalyptic number.

11222031 is a deficient number, since it is larger than the sum of its proper divisors (4462577).

11222031 is a wasteful number, since it uses less digits than its factorization.

11222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11222031 is about 3349.9299992686. The cubic root of 11222031 is about 223.8843937367.

Adding to 11222031 its reverse (13022211), we get a palindrome (24244242).

The spelling of 11222031 in words is "eleven million, two hundred twenty-two thousand, thirty-one".