31033222201021 has 8 divisors (see below), whose sum is σ = 31278175902720. Its totient is φ = 30788277837408.

The previous prime is 31033222200947. The next prime is 31033222201039. The reversal of 31033222201021 is 12010222233013.

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 31033222201021 - 2¹¹ = 31033222198973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31033222200983 and 31033222201001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31033222201061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4415010 + ... + 9030988.

It is an arithmetic number, because the mean of its divisors is an integer number (3909771987840).

Almost surely, 2^{31033222201021} is an apocalyptic number.

It is an amenable number.

31033222201021 is a deficient number, since it is larger than the sum of its proper divisors (244953701699).

31033222201021 is a wasteful number, since it uses less digits than its factorization.

31033222201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669043.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31033222201021 its reverse (12010222233013), we get a palindrome (43043444434034).

The spelling of 31033222201021 in words is "thirty-one trillion, thirty-three billion, two hundred twenty-two million, two hundred one thousand, twenty-one".