10021012222122 has 24 divisors (see below), whose sum is σ = 23686028889120. Its totient is φ = 3036670370280.

The previous prime is 10021012222051. The next prime is 10021012222153. The reversal of 10021012222122 is 22122221012001.

It is a happy number.

10021012222122 is a `hidden beast` number, since 100 + 210 + 12 + 222 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10021012222095 and 10021012222104.

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 in 11 ways as a sum of consecutive naturals, for example, 25305586222 + ... + 25305586617.

It is an arithmetic number, because the mean of its divisors is an integer number (986917870380).

Almost surely, 2^{10021012222122} is an apocalyptic number.

10021012222122 is an abundant number, since it is smaller than the sum of its proper divisors (13665016666998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10021012222122 is a wasteful number, since it uses less digits than its factorization.

10021012222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50611172858 (or 50611172855 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10021012222122 its reverse (22122221012001), we get a palindrome (32143233234123).

It can be divided in two parts, 1002101 and 2222122, that added together give a palindrome (3224223).

The spelling of 10021012222122 in words is "ten trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, one hundred twenty-two".