31223223022201 has 4 divisors (see below), whose sum is σ = 35683683453952. Its totient is φ = 26762762590452.

The previous prime is 31223223022151. The next prime is 31223223022217. The reversal of 31223223022201 is 10222032232213.

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 not a de Polignac number, because 31223223022201 - 2¹⁷ = 31223222891129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31223223022231) 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, 2230230215865 + ... + 2230230215878.

It is an arithmetic number, because the mean of its divisors is an integer number (8920920863488).

Almost surely, 2^{31223223022201} is an apocalyptic number.

It is an amenable number.

31223223022201 is a deficient number, since it is larger than the sum of its proper divisors (4460460431751).

31223223022201 is an equidigital number, since it uses as much as digits as its factorization.

31223223022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460460431750.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31223223022201 its reverse (10222032232213), we get a palindrome (41445255254414).

The spelling of 31223223022201 in words is "thirty-one trillion, two hundred twenty-three billion, two hundred twenty-three million, twenty-two thousand, two hundred one".