10012120002100 has 36 divisors (see below), whose sum is σ = 21770549595648. Its totient is φ = 3996691468000.

The previous prime is 10012120002097. The next prime is 10012120002109. The reversal of 10012120002100 is 120002121001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012120002109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101907316 + ... + 102005515.

It is an arithmetic number, because the mean of its divisors is an integer number (604737488768).

Almost surely, 2^{10012120002100} is an apocalyptic number.

10012120002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012120002100 is an abundant number, since it is smaller than the sum of its proper divisors (11758429593548).

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

10012120002100 is a wasteful number, since it uses less digits than its factorization.

10012120002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203913336 (or 203913329 counting only the distinct ones).

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

Adding to 10012120002100 its reverse (120002121001), we get a palindrome (10132122123101).

The spelling of 10012120002100 in words is "ten trillion, twelve billion, one hundred twenty million, two thousand, one hundred".