10021120212 has 48 divisors (see below), whose sum is σ = 23733360000. Its totient is φ = 3290601600.

The previous prime is 10021120183. The next prime is 10021120243. The reversal of 10021120212 is 21202112001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220414 + ... + 261962.

It is an arithmetic number, because the mean of its divisors is an integer number (494445000).

Almost surely, 2^10021120212 is an apocalyptic number.

10021120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10021120212 is an abundant number, since it is smaller than the sum of its proper divisors (13712239788).

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

10021120212 is a wasteful number, since it uses less digits than its factorization.

10021120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41856 (or 41854 counting only the distinct ones).

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

Adding to 10021120212 its reverse (21202112001), we get a palindrome (31223232213).

The spelling of 10021120212 in words is "ten billion, twenty-one million, one hundred twenty thousand, two hundred twelve".