10212100120 has 16 divisors (see below), whose sum is σ = 22977225360. Its totient is φ = 4084840032.

The previous prime is 10212100117. The next prime is 10212100231. The reversal of 10212100120 is 2100121201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10212100097 and 10212100106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127651212 + ... + 127651291.

It is an arithmetic number, because the mean of its divisors is an integer number (1436076585).

Almost surely, 2^10212100120 is an apocalyptic number.

10212100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212100120 is an abundant number, since it is smaller than the sum of its proper divisors (12765125240).

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

10212100120 is a wasteful number, since it uses less digits than its factorization.

10212100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255302514 (or 255302510 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10212100120 its reverse (2100121201), we get a palindrome (12312221321).

The spelling of 10212100120 in words is "ten billion, two hundred twelve million, one hundred thousand, one hundred twenty".