22011212031 has 8 divisors (see below), whose sum is σ = 29608002480. Its totient is φ = 14544281472.

The previous prime is 22011211987. The next prime is 22011212033. The reversal of 22011212031 is 13021211022.

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

It is not a de Polignac number, because 22011212031 - 2¹⁸ = 22010949887 is a prime.

It is a super-2 number, since 2×22011212031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22011212031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011212033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32464576 + ... + 32465253.

It is an arithmetic number, because the mean of its divisors is an integer number (3701000310).

Almost surely, 2^22011212031 is an apocalyptic number.

22011212031 is a deficient number, since it is larger than the sum of its proper divisors (7596790449).

22011212031 is a wasteful number, since it uses less digits than its factorization.

22011212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64929945.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22011212031 its reverse (13021211022), we get a palindrome (35032423053).

The spelling of 22011212031 in words is "twenty-two billion, eleven million, two hundred twelve thousand, thirty-one".