10021210122 has 64 divisors (see below), whose sum is σ = 25011763200. Its totient is φ = 2600431680.

The previous prime is 10021210057. The next prime is 10021210151. The reversal of 10021210122 is 22101212001.

It is a junction number, because it is equal to n+sod(n) for n = 10021210098 and 10021210107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502579 + ... + 522137.

It is an arithmetic number, because the mean of its divisors is an integer number (390808800).

Almost surely, 2^10021210122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10021210122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12505881600).

10021210122 is an abundant number, since it is smaller than the sum of its proper divisors (14990553078).

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

10021210122 is a wasteful number, since it uses less digits than its factorization.

10021210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20691.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10021210122 its reverse (22101212001), we get a palindrome (32122422123).

The spelling of 10021210122 in words is "ten billion, twenty-one million, two hundred ten thousand, one hundred twenty-two".