22031202123 has 32 divisors (see below), whose sum is σ = 37569907200. Its totient is φ = 12498673248.

The previous prime is 22031202121. The next prime is 22031202131. The reversal of 22031202123 is 32120213022.

It is not a de Polignac number, because 22031202123 - 2¹ = 22031202121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22031202096 and 22031202105.

It is not an unprimeable number, because it can be changed into a prime (22031202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393036 + ... + 445577.

It is an arithmetic number, because the mean of its divisors is an integer number (1174059600).

Almost surely, 2^22031202123 is an apocalyptic number.

22031202123 is a deficient number, since it is larger than the sum of its proper divisors (15538705077).

22031202123 is a wasteful number, since it uses less digits than its factorization.

22031202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838768 (or 838762 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22031202123 its reverse (32120213022), we get a palindrome (54151415145).

The spelling of 22031202123 in words is "twenty-two billion, thirty-one million, two hundred two thousand, one hundred twenty-three".