22020031 has 8 divisors (see below), whose sum is σ = 25286400. Its totient is φ = 18964440.

The previous prime is 22020029. The next prime is 22020059. The reversal of 22020031 is 13002022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22020031 - 2¹ = 22020029 is a prime.

It is a super-2 number, since 2×22020031² = 969763530481922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52471 + ... + 52888.

It is an arithmetic number, because the mean of its divisors is an integer number (3160800).

Almost surely, 2^22020031 is an apocalyptic number.

22020031 is a deficient number, since it is larger than the sum of its proper divisors (3266369).

22020031 is a wasteful number, since it uses less digits than its factorization.

22020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105389.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 22020031 is about 4692.5505857689. The cubic root of 22020031 is about 280.2889491621.

Adding to 22020031 its reverse (13002022), we get a palindrome (35022053).

Subtracting from 22020031 its reverse (13002022), we obtain a square (9018009 = 3003²).

The spelling of 22020031 in words is "twenty-two million, twenty thousand, thirty-one".