22121222231032 has 8 divisors (see below), whose sum is σ = 41477291683200. Its totient is φ = 11060611115512.

The previous prime is 22121222231021. The next prime is 22121222231039. The reversal of 22121222231032 is 23013222212122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22121222230988 and 22121222231006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121222231039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382576389432 + ... + 1382576389447.

It is an arithmetic number, because the mean of its divisors is an integer number (5184661460400).

Almost surely, 2^{22121222231032} is an apocalyptic number.

It is an amenable number.

22121222231032 is a deficient number, since it is larger than the sum of its proper divisors (19356069452168).

22121222231032 is a wasteful number, since it uses less digits than its factorization.

22121222231032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765152778885 (or 2765152778881 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 22121222231032 its reverse (23013222212122), we get a palindrome (45134444443154).

The spelling of 22121222231032 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred thirty-one thousand, thirty-two".