10212011021 has 8 divisors (see below), whose sum is σ = 10230944064. Its totient is φ = 10193097600.

The previous prime is 10212010987. The next prime is 10212011083. The reversal of 10212011021 is 12011021201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212011021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212010993 and 10212011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212011321) 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, 1365725 + ... + 1373181.

It is an arithmetic number, because the mean of its divisors is an integer number (1278868008).

Almost surely, 2^10212011021 is an apocalyptic number.

It is an amenable number.

10212011021 is a deficient number, since it is larger than the sum of its proper divisors (18933043).

10212011021 is a wasteful number, since it uses less digits than its factorization.

10212011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10212011021 its reverse (12011021201), we get a palindrome (22223032222).

The spelling of 10212011021 in words is "ten billion, two hundred twelve million, eleven thousand, twenty-one".