10010020212 has 72 divisors (see below), whose sum is σ = 25742979080. Its totient is φ = 3278776320.

The previous prime is 10010020157. The next prime is 10010020231. The reversal of 10010020212 is 21202001001.

It can be written as a sum of positive squares in 4 ways, for example, as 1205200656 + 8804819556 = 34716^2 + 93834^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10010020194 and 10010020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3531948 + ... + 3534780.

Almost surely, 2^10010020212 is an apocalyptic number.

10010020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10010020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12871489540).

10010020212 is an abundant number, since it is smaller than the sum of its proper divisors (15732958868).

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

10010020212 is a wasteful number, since it uses less digits than its factorization.

10010020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513 (or 4508 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10010020212 its reverse (21202001001), we get a palindrome (31212021213).

The spelling of 10010020212 in words is "ten billion, ten million, twenty thousand, two hundred twelve".