22122220021012 has 12 divisors (see below), whose sum is σ = 38806280946720. Its totient is φ = 11034711179096.

The previous prime is 22122220020947. The next prime is 22122220021039. The reversal of 22122220021012 is 21012002222122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6599705968 + ... + 6599709319.

It is an arithmetic number, because the mean of its divisors is an integer number (3233856745560).

Almost surely, 2^{22122220021012} is an apocalyptic number.

It is an amenable number.

22122220021012 is a deficient number, since it is larger than the sum of its proper divisors (16684060925708).

22122220021012 is a wasteful number, since it uses less digits than its factorization.

22122220021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13199415710 (or 13199415708 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22122220021012 its reverse (21012002222122), we get a palindrome (43134222243134).

The spelling of 22122220021012 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, twenty-one thousand, twelve".