22001021031331 has 8 divisors (see below), whose sum is σ = 22958362709280. Its totient is φ = 21043743982272.

The previous prime is 22001021031167. The next prime is 22001021031389. The reversal of 22001021031331 is 13313012010022.

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

It is a cyclic number.

It is not a de Polignac number, because 22001021031331 - 2⁹ = 22001021030819 is a prime.

It is a super-2 number, since 2×22001021031331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22001021031299 and 22001021031308.

It is not an unprimeable number, because it can be changed into a prime (22001021034331) 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, 15460930 + ... + 16823863.

It is an arithmetic number, because the mean of its divisors is an integer number (2869795338660).

Almost surely, 2^{22001021031331} is an apocalyptic number.

22001021031331 is a deficient number, since it is larger than the sum of its proper divisors (957341677949).

22001021031331 is a wasteful number, since it uses less digits than its factorization.

22001021031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32314445.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 22001021031331 its reverse (13313012010022), we get a palindrome (35314033041353).

The spelling of 22001021031331 in words is "twenty-two trillion, one billion, twenty-one million, thirty-one thousand, three hundred thirty-one".