10212020120 has 64 divisors (see below), whose sum is σ = 23530763520. Its totient is φ = 3986527104.

The previous prime is 10212020057. The next prime is 10212020129. The reversal of 10212020120 is 2102021201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212020129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3856637 + ... + 3859283.

It is an arithmetic number, because the mean of its divisors is an integer number (367668180).

Almost surely, 2^10212020120 is an apocalyptic number.

10212020120 is a gapful number since it is divisible by the number (10) 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 10212020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11765381760).

10212020120 is an abundant number, since it is smaller than the sum of its proper divisors (13318743400).

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

10212020120 is a wasteful number, since it uses less digits than its factorization.

10212020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944 (or 4940 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10212020120 its reverse (2102021201), we get a palindrome (12314041321).

The spelling of 10212020120 in words is "ten billion, two hundred twelve million, twenty thousand, one hundred twenty".