31020011123222 has 16 divisors (see below), whose sum is σ = 52131910586832. Its totient is φ = 13718923837920.

The previous prime is 31020011123219. The next prime is 31020011123249. The reversal of 31020011123222 is 22232111002013.

It is a super-2 number, since 2×31020011123222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31020011123194 and 31020011123203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19054060073 + ... + 19054061700.

It is an arithmetic number, because the mean of its divisors is an integer number (3258244411677).

Almost surely, 2^{31020011123222} is an apocalyptic number.

31020011123222 is a deficient number, since it is larger than the sum of its proper divisors (21111899463610).

31020011123222 is a wasteful number, since it uses less digits than its factorization.

31020011123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38108121823.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31020011123222 its reverse (22232111002013), we get a palindrome (53252122125235).

The spelling of 31020011123222 in words is "thirty-one trillion, twenty billion, eleven million, one hundred twenty-three thousand, two hundred twenty-two".