22123021012 has 24 divisors (see below), whose sum is σ = 39182663520. Its totient is φ = 10928445600.

The previous prime is 22123020991. The next prime is 22123021021. The reversal of 22123021012 is 21012032122.

It is a happy number.

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, 130039 + ... + 247297.

It is an arithmetic number, because the mean of its divisors is an integer number (1632610980).

Almost surely, 2^22123021012 is an apocalyptic number.

It is an amenable number.

22123021012 is a deficient number, since it is larger than the sum of its proper divisors (17059642508).

22123021012 is a wasteful number, since it uses less digits than its factorization.

22123021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117831 (or 117829 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22123021012 its reverse (21012032122), we get a palindrome (43135053134).

It can be divided in two parts, 221230 and 21012, that added together give a palindrome (242242).

The spelling of 22123021012 in words is "twenty-two billion, one hundred twenty-three million, twenty-one thousand, twelve".