31322023202222 has 4 divisors (see below), whose sum is σ = 46983034803336. Its totient is φ = 15661011601110.

The previous prime is 31322023202189. The next prime is 31322023202233. The reversal of 31322023202222 is 22220232022313.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×31322023202222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31322023202191 and 31322023202200.

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 as a sum of consecutive naturals, namely, 7830505800554 + ... + 7830505800557.

It is an arithmetic number, because the mean of its divisors is an integer number (11745758700834).

Almost surely, 2^{31322023202222} is an apocalyptic number.

31322023202222 is a deficient number, since it is larger than the sum of its proper divisors (15661011601114).

31322023202222 is a wasteful number, since it uses less digits than its factorization.

31322023202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15661011601113.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31322023202222 its reverse (22220232022313), we get a palindrome (53542255224535).

The spelling of 31322023202222 in words is "thirty-one trillion, three hundred twenty-two billion, twenty-three million, two hundred two thousand, two hundred twenty-two".