10212121002 has 16 divisors (see below), whose sum is σ = 20922394752. Its totient is φ = 3321014880.

The previous prime is 10212121001. The next prime is 10212121013. The reversal of 10212121002 is 20012121201.

It is not an unprimeable number, because it can be changed into a prime (10212121001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20756098 + ... + 20756589.

It is an arithmetic number, because the mean of its divisors is an integer number (1307649672).

Almost surely, 2^10212121002 is an apocalyptic number.

10212121002 is an abundant number, since it is smaller than the sum of its proper divisors (10710273750).

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

10212121002 is a wasteful number, since it uses less digits than its factorization.

10212121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41512733.

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

Adding to 10212121002 its reverse (20012121201), we get a palindrome (30224242203).

The spelling of 10212121002 in words is "ten billion, two hundred twelve million, one hundred twenty-one thousand, two".