31221102223214 has 16 divisors (see below), whose sum is σ = 47734533167328. Its totient is φ = 15309828991392.

The previous prime is 31221102223187. The next prime is 31221102223243. The reversal of 31221102223214 is 41232220112213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59192162 + ... + 59717285.

It is an arithmetic number, because the mean of its divisors is an integer number (2983408322958).

Almost surely, 2^{31221102223214} is an apocalyptic number.

31221102223214 is a deficient number, since it is larger than the sum of its proper divisors (16513430944114).

31221102223214 is a wasteful number, since it uses less digits than its factorization.

31221102223214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118911979.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31221102223214 its reverse (41232220112213), we get a palindrome (72453322335427).

The spelling of 31221102223214 in words is "thirty-one trillion, two hundred twenty-one billion, one hundred two million, two hundred twenty-three thousand, two hundred fourteen".