31421123010222 has 32 divisors (see below), whose sum is σ = 68555376601344. Its totient is φ = 9521524771200.

The previous prime is 31421123010143. The next prime is 31421123010259. The reversal of 31421123010222 is 22201032112413.

It is a junction number, because it is equal to n+sod(n) for n = 31421123010192 and 31421123010201.

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 15 ways as a sum of consecutive naturals, for example, 42341478 + ... + 43077174.

It is an arithmetic number, because the mean of its divisors is an integer number (2142355518792).

Almost surely, 2^{31421123010222} is an apocalyptic number.

31421123010222 is an abundant number, since it is smaller than the sum of its proper divisors (37134253591122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31421123010222 is a wasteful number, since it uses less digits than its factorization.

31421123010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382824.

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

Adding to 31421123010222 its reverse (22201032112413), we get a palindrome (53622155122635).

The spelling of 31421123010222 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred twenty-three million, ten thousand, two hundred twenty-two".