10212121122 has 64 divisors (see below), whose sum is σ = 24121344000. Its totient is φ = 2820536640.

The previous prime is 10212121111. The next prime is 10212121123. The reversal of 10212121122 is 22112121201.

It is not an unprimeable number, because it can be changed into a prime (10212121123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1349004 + ... + 1356552.

It is an arithmetic number, because the mean of its divisors is an integer number (376896000).

Almost surely, 2^10212121122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10212121122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12060672000).

10212121122 is an abundant number, since it is smaller than the sum of its proper divisors (13909222878).

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

10212121122 is a wasteful number, since it uses less digits than its factorization.

10212121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10212121122 its reverse (22112121201), we get a palindrome (32324242323).

The spelling of 10212121122 in words is "ten billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-two".