212010011010 has 128 divisors (see below), whose sum is σ = 647364188160. Its totient is φ = 48366548928.

The previous prime is 212010010999. The next prime is 212010011033. The reversal of 212010011010 is 10110010212.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212010010983 and 212010011001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 881229 + ... + 1095711.

It is an arithmetic number, because the mean of its divisors is an integer number (5057532720).

Almost surely, 2^212010011010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212010011010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323682094080).

212010011010 is an abundant number, since it is smaller than the sum of its proper divisors (435354177150).

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

212010011010 is a wasteful number, since it uses less digits than its factorization.

212010011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215029 (or 215023 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 212010011010 its reverse (10110010212), we get a palindrome (222120021222).

The spelling of 212010011010 in words is "two hundred twelve billion, ten million, eleven thousand, ten".