31222210121223 has 16 divisors (see below), whose sum is σ = 45414267103872. Its totient is φ = 18922491884000.

The previous prime is 31222210121213. The next prime is 31222210121231. The reversal of 31222210121223 is 32212101222213.

It is a cyclic number.

It is not a de Polignac number, because 31222210121223 - 2⁹ = 31222210120711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31222210121193 and 31222210121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222210121213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10582828 + ... + 13207598.

It is an arithmetic number, because the mean of its divisors is an integer number (2838391693992).

Almost surely, 2^{31222210121223} is an apocalyptic number.

31222210121223 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31222210121223 is a deficient number, since it is larger than the sum of its proper divisors (14192056982649).

31222210121223 is a wasteful number, since it uses less digits than its factorization.

31222210121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985246.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31222210121223 its reverse (32212101222213), we get a palindrome (63434311343436).

The spelling of 31222210121223 in words is "thirty-one trillion, two hundred twenty-two billion, two hundred ten million, one hundred twenty-one thousand, two hundred twenty-three".