31022200121009 has 4 divisors (see below), whose sum is σ = 31548000123120. Its totient is φ = 30496400118900.

The previous prime is 31022200120997. The next prime is 31022200121027. The reversal of 31022200121009 is 90012100222013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31022200121009 - 2⁴ = 31022200120993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31022200123009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262900000967 + ... + 262900001084.

It is an arithmetic number, because the mean of its divisors is an integer number (7887000030780).

Almost surely, 2^{31022200121009} is an apocalyptic number.

It is an amenable number.

31022200121009 is a deficient number, since it is larger than the sum of its proper divisors (525800002111).

31022200121009 is an equidigital number, since it uses as much as digits as its factorization.

31022200121009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525800002110.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 31022200121009 in words is "thirty-one trillion, twenty-two billion, two hundred million, one hundred twenty-one thousand, nine".